Ratings
YAMAKAWA Takashi (Japan)
Japanese name(s): 山川高志263 tournaments
1647 results
Player ID: 5539
Rated 7 in Japan and 7 in Asia&Oceania&Africa and 7 in the World
Latest rating: 2505
WOF online rating: 1863, view profile on Vint.ee
1647 results
Player ID: 5539
Rated 7 in Japan and 7 in Asia&Oceania&Africa and 7 in the World
Latest rating: 2505
WOF online rating: 1863, view profile on Vint.ee
Takashi Yamakawa is the 2025 Asia-Pacific Othello Champion winning the 3rd edition of the APOC in Hangzhou, China.
- 2025
- 2024
- 2023
- 2022
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2007
- 2006
- 2005
- 2004
- 2003
2025-07-26 → 2025-07-27: 3rd Asia Pacific championship(China)
2025-07-19: 171_Shinagawa_open(Japan)
2025-07-13: 18_Ouza_Sen(Japan)
2025-05-24: 29_Shinagawa_super_league(Japan)
2025-05-04: Ryusho_cup(Japan)
2025-03-16: 45_Meijin(Japan)
2025-03-15: 45_Meijin_team(Japan)
| YAMAKAWA Takashi | 53-11 | ZHANG Yize |
| CHEN Shaodi | 26-38 | YAMAKAWA Takashi |
| LANG Yongzhi | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | WEN Tingchao |
| CHEN Xun | 28-36 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 60-04 | LV Le |
| YAMAKAWA Takashi | 38-26 | DU Zhouzi |
| WANG Zhen | 22-42 | YAMAKAWA Takashi |
| ZHOU Jian | 29-35 | YAMAKAWA Takashi |
| SONG Yan | 31-33 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | SATANI Tetsu |
| SONG Yan | 27-37 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | SONG Yan |
| YAMAKAWA Takashi | 55-09 | YAMAUCHI Rio |
| YAMAKAWA Takashi | 36-28 | KIMURA Kohiroshi |
| YAMAKAWA Takashi | won against | NAGATSUKA Ibuki |
| YAMAKAWA Takashi | 37-27 | UMEDA Yuwa |
| YAMAKAWA Takashi | 47-17 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 49-15 | OKADA Oochi |
| KITAJIMA Satoya | 64-00 | YAMAKAWA Takashi |
| SASAKI Sohei | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | MITSUYA Nobuaki |
| TOMITA Yo | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | YOKOSAWA Haruko |
| YAMAKAWA Takashi | 64-00 | SATANI Tetsu |
| KURAHASHI Satoshi | 49-15 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | ITO Kenshun |
| YAMAKAWA Takashi | 35-29 | HISHIYAMA Yuichi |
| TAKAHASHI Akihiro | 34-30 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | ITO Yuji |
| YAMAKAWA Takashi | 34-30 | TOMITA Yo |
| YAMAKAWA Takashi | 54-10 | MATSUBARA Yuto |
| NAKAMURA Rintaro | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 34-30 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 38-26 | ITO Kenshun |
| YAMAKAWA Takashi | 36-28 | URANO Kento |
| GOTO Akihiko | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ASAHINA Satoshi |
| YAMAKAWA Takashi | won against | TSUCHIGANE Taishi |
| YAMAKAWA Takashi | won against | MURAKAMI Takeshi |
| HISAMATSU Miu | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KAWARABAYASHI Koji |
| YAMAKAWA Takashi | won against | ITO Junya |
| YAMAKAWA Takashi | 54-10 | OHGA Nao |
| YAMAKAWA Takashi | 34-30 | TOMITO Shouhei |
| YAMAKAWA Takashi | 34-30 | OGURA Ryutaro |
| YAMAKAWA Takashi | 33-31 | HISHIYAMA Yuichi |
| KURITA Seiya | 45-19 | YAMAKAWA Takashi |
2024-09-08: 50_All_Japan_championship(Japan)
2024-08-04: 13_Kanagawa_cup(Japan)
2024-07-21: 17_Ouza_Sen(Japan)
2024-04-06: 157_Shinagawa_open(Japan)
2024-03-17: 44_Meijin(Japan)
2024-03-02: 156_Shinagawa_open(Japan)
2024-02-18: 2024_Tokyo_expert_games(Japan)
2024-02-03: 155_Shinagawa_open(Japan)
| ISHII Takehiro | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | MIYAZAKI Yuji |
| YAMAKAWA Takashi | won against | YOSHINO Toru |
| YAMAKAWA Takashi | won against | ARAI Toshiko |
| YAMAKAWA Takashi | won against | TSUKAMOTO Kazuma |
| YAMAKAWA Takashi | won against | TAKIZAWA Nobuyuki |
| KURITA Seiya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | TSUTSUMI Ari |
| YAMAKAWA Takashi | 46-18 | TOKIWA Shuto |
| YAMAKAWA Takashi | 50-14 | NAKAMORI Hiroki |
| TAKANASHI Yusuke | 34-30 | YAMAKAWA Takashi |
| MURAKAMI Takeshi | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | won against | ABE Yura |
| YAMAKAWA Takashi | won against | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | won against | NAKAJIMA Tetsuya |
| SATO Naohiro | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | MIYAGAWA Keigo |
| YAMAKAWA Takashi | won against | NAKAMURA Rintaro |
| YAMAKAWA Takashi | 53-11 | KIMURA Shion |
| YAMAKAWA Takashi | 35-29 | IWAKURA Hiroaki |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | NANSE Yoshito |
| NAKAJIMA Tetsuya | 42-22 | YAMAKAWA Takashi |
| TOMITA Yo | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | OTANI Akimoto |
| KURITA Seiya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ANDRIANI Bintsa |
| YAMAKAWA Takashi | won against | TAKIZAWA Nobuyuki |
| YAMAKAWA Takashi | won against | MIYAMOTO Taketora |
| YAMAKAWA Takashi | won against | SHIMIZU Naoki |
| YAMAKAWA Takashi | won against | SHIMOMURA Shiki |
| YAMAKAWA Takashi | 52-12 | MATSUZAKA Daiki |
| OHIKE Yoshinori | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | MIYAMOTO Taketora |
| YAMAKAWA Takashi | 39-25 | URANO Kento |
| YAMAKAWA Takashi | 36-28 | KURITA Seiya |
| YAMAKAWA Takashi | 52-12 | KOMATSU Kanaharu |
| YAMAKAWA Takashi | 40-24 | KITAJIMA Hideki |
| YAMAKAWA Takashi | 49-15 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 41-23 | NISHIBAYASHI Touya |
| YAMAKAWA Takashi | 39-25 | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 38-26 | MEISHO Yuta |
| NAKAJIMA Tetsuya | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | OTANI Akimoto |
| YAMAKAWA Takashi | 47-17 | OGURA Ryutaro |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 43-21 | KIYONOBU Kenta |
| URANO Kento | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | TATSUMI-IIJIMA Yukiko |
2023-11-26: 49_All_Japan_championship(Japan)
2023-11-18: 153_Shinagawa_open(Japan)
2023-10-08: 49_All_Japan_Tokyo_prelim_1(Japan)
2023-09-03: 120_Kanagawa_open_B(Japan)
2023-07-16: 16_Ouza_Sen(Japan)
2023-06-23: Asia Pacific Othello Championship 2023(Mongolia)
2023-05-04: 33_Kyoto_open(Japan)
2023-03-19: 43_Meijin(Japan)
| URANO Kento | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | HAMASAKI Akihiro |
| YAMAKAWA Takashi | won against | KURAHASHI Satoshi |
| YAMAKAWA Takashi | won against | GOTO Hiroshi |
| KURITA Seiya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | HASEGAWA Takeshi |
| YAMAKAWA Takashi | 45-19 | KOMATSU Kanaharu |
| YAMAKAWA Takashi | 45-19 | SHIRAI Yuga |
| YAMAKAWA Takashi | 40-24 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 38-26 | URANO Kento |
| YAMAKAWA Takashi | 37-27 | MEISHO Yuta |
| YAMAKAWA Takashi | 45-19 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 52-12 | KITAJIMA Satoya |
| SHIROTA Yasuto | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | NAKAJIMA Tetsuya |
| OGURA Ryutaro | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 46-18 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 43-21 | SHIROTA Yasuto |
| YAMAKAWA Takashi | 52-12 | KUNIO Yukihiro |
| YAMAKAWA Takashi | 41-23 | SATANI Tetsu |
| YAMAKAWA Takashi | 39-25 | TSUCHIGANE Taishi |
| YAMAKAWA Takashi | 41-23 | KURAHASHI Satoshi |
| YAMAKAWA Takashi | 40-24 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 34-30 | SAJI Kouya |
| YAMAKAWA Takashi | 48-16 | SUGASE Takahiro |
| YAMAKAWA Takashi | 52-12 | HASHIMOTO Yuuta |
| YAMAKAWA Takashi | 37-27 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 34-30 | SHIMOMURA Shiki |
| SATANI Tetsu | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | SAJI Kouya |
| YAMAKAWA Takashi | 64-00 | ALTANTSETSEG Purevsuren |
| GANTUMUR Enkh-Amgalan | 11-53 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 60-04 | NARANTSATSRAL Enkhbayar |
| WANG Zhen | 31-33 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 16-48 | TAKANASHI Yusuke |
| KIM Taeyeon | 15-49 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | SHI Peipei |
| JANG Hyunwoo | 16-48 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 26-38 | URANO Kento |
| SAJI Kouya | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 14-50 | SOUDA Shun |
| YAMAKAWA Takashi | 58-06 | YOSHIMOTO Nobuhide |
| YAMAKAWA Takashi | 47-17 | GOTO Masahiro |
| NAGASHIMA Kouyou | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | NANASE Yuuma |
| YAMAKAWA Takashi | 37-27 | NORIMITSU Ayumi |
| YAMAKAWA Takashi | 32-32 | TAMENORI Hideshi |
| YAMAKAWA Takashi | 39-25 | SHIMOMURA Shiki |
| YAMAKAWA Takashi | 37-27 | GOTO Masahiro |
| YAMAKAWA Takashi | 52-12 | MIURA Toshie |
| NAGANO Yasushi | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | KITAJIMA Hideki |
| YAMAKAWA Takashi | 47-17 | HORIUCHI Soutarou |
| YAMAKAWA Takashi | 45-19 | URANO Kento |
| YAMAKAWA Takashi | 33-31 | NAGANO Yasushi |
| KURITA Seiya | 34-30 | YAMAKAWA Takashi |
2022-07-10: 15_Ouza_sen(Japan)
2022-03-21: 42_Meijin(Japan)
| YAMAKAWA Takashi | 49-15 | UENO Tomohisa |
| YAMAKAWA Takashi | 43-21 | NAKAOKA Akinori |
| YAMAKAWA Takashi | 41-23 | OGURA Ryutaro |
| TAKAHASHI Akihiro | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | KANO Chihiro |
| SHIMOMURA Shiki | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | NAKAMURA Rintaro |
| YAMAKAWA Takashi | won against | IKEDA Takeshi |
| YAMAKAWA Takashi | won against | SASAKI Sohei |
| YAMAKAWA Takashi | won against | UENO Tomohisa |
| SHIMOMURA Shiki | won against | YAMAKAWA Takashi |
| MASUDA Tokuya | won against | YAMAKAWA Takashi |
| KITAJIMA Hideki | won against | YAMAKAWA Takashi |
2020-01-04: Shinagawa_open(Japan)
| YAMAKAWA Takashi | 37-27 | ODA Akari |
| YAMAKAWA Takashi | 47-17 | OHWAKU Yuta |
| SHIROTA Yasuto | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | ITO Kenshun |
| SUEKUNI Makoto | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 49-15 | OGINO Takeru |
2019-12-28: 151_Shinagawa_open(Japan)
2019-11-17: 262_Kawagoe_ranking_games(Japan)
2019-09-28: 142_Chiyarenshi_open_beginner(Japan)
2019-09-15: 19_Saitama_open(Japan)
2019-09-07: 28_Shinagawa_super_league(Japan)
2019-09-01: 114_Sendai_open(Japan)
2019-08-24: 141_Chiyarenshi_open_beginner(Japan)
2019-08-10: 10_Tokyo_open(Japan)
2019-08-04: 10_Kanagawa_cup(Japan)
2019-05-05: 31_Kyoto_open(Japan)
2019-04-07: 7_Yokohama_challenge(Japan)
2019-03-03: 26_Shinagawa_super_league(Japan)
2019-01-13: 14_Kyoto_standings(Japan)
2019-01-05: Shinagawa_open_2019(Japan)
| YAMAKAWA Takashi | 43-21 | KAGAHARA Shota |
| YAMAKAWA Takashi | 35-29 | HORIUCHI Soutarou |
| YAMAKAWA Takashi | 45-19 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 33-31 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 35-29 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 62-02 | HAGIHARA Shirou |
| YAMAKAWA Takashi | 45-19 | USHIKUBO Yu |
| YAMAKAWA Takashi | 37-27 | ADACHI Shungai |
| YAMAKAWA Takashi | 35-29 | HASEGAWA Takeshi |
| YAMAKAWA Takashi | 35-29 | KURACHI Takayuki |
| YAMAKAWA Takashi | 48-16 | KANEKO Hikaru |
| YAMAKAWA Takashi | 34-30 | ITO Yuji |
| YAMAKAWA Takashi | 35-29 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 56-08 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 33-31 | SATANI Tetsu |
| YAMAKAWA Takashi | 33-31 | NANASE Yuuma |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 38-26 | KOBAYASHI Ayumi |
| YAMAKAWA Takashi | 42-22 | HASEGAWA Takeshi |
| YAMAKAWA Takashi | 36-28 | OHMORI Keita |
| MURAKAMI Takeshi | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | MATSUMOTO Makoto |
| YAMAKAWA Takashi | 36-28 | TODA Tomoya |
| YAMAKAWA Takashi | won against | SATANI Tetsu |
| YAMAKAWA Takashi | 38-26 | TAKAMIZAWA Daiki |
| YAMAKAWA Takashi | 35-29 | URANO Kento |
| SUEKUNI Makoto | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NAKAMORI Hiroki |
| TAKAHASHI Akihiro | 39-25 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | OGINO Takeru |
| YAMAKAWA Takashi | 44-20 | SAITO Aya |
| YAMAKAWA Takashi | 36-28 | MATSUMOTO Makoto |
| URANO Kento | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 45-19 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 50-14 | TAKIGAWA Mitsuaki |
| KIYONOBU Kenta | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | SATANI Tetsu |
| YAMAKAWA Takashi | won against | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | 34-30 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 42-22 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 34-30 | TODOKORO Tae |
| NAGANO Yasushi | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | KURIHARA Aru |
| YAMAKAWA Takashi | 43-21 | DE MARCO Wesley |
| YAMAKAWA Takashi | 40-24 | KOBAYASHI Ayumi |
| YAMAKAWA Takashi | 41-23 | YAMAGUCHI Tomoki |
| YAMAKAWA Takashi | 48-16 | TAKANO Satoshi |
| YAMAKAWA Takashi | 50-14 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 39-25 | MITSUYA Nobuaki |
| KURIHARA Aru | 33-31 | YAMAKAWA Takashi |
| URANO Kento | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | NANASE Yuuma |
| YAMAKAWA Takashi | 49-15 | SATANI Tetsu |
| YAMAKAWA Takashi | 36-28 | TAGUCHI Shinya |
| YAMAKAWA Takashi | 37-27 | SATO Junnosuke |
| YAMAKAWA Takashi | 46-18 | MATSUBARA Takashi |
| NAGANO Yasushi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | YAMAZAKI Keita |
| YONEMA Hayato | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | HADA Jun |
| YAMAKAWA Takashi | 37-27 | MATSUMOTO Makoto |
| YAMAKAWA Takashi | 37-27 | SUZURIKAWA Toshimasa |
| YAMAKAWA Takashi | 48-16 | URANO Kento |
| YAMAKAWA Takashi | 37-27 | OSATO Suguru |
| YAMAKAWA Takashi | 34-30 | KUWAHARA Shuhei |
| GO Shinu | 33-31 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 35-29 | YAMAKAWA Takashi |
| WADA Masaki | 41-23 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 49-15 | OSATO Suguru |
| YAMAKAWA Takashi | 36-28 | NAKAMURA Rintaro |
| YAMAKAWA Takashi | won against | SOUDA Shun |
| YAMAKAWA Takashi | 35-29 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 53-11 | IKEHATA Keiko |
| YAMAKAWA Takashi | won against | SHIMOMURA Shiki |
| YAMAKAWA Takashi | 40-24 | NAGAO Hiroto |
| YAMAKAWA Takashi | 35-29 | HIRANO Tomo |
| YAMAKAWA Takashi | 33-31 | FUKUNAGA Kohachi |
| TAKAHASHI Akihiro | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | YAMAZAKI Midorikawa |
| YAMAKAWA Takashi | 58-06 | OGAWA Asakura |
| YAMAKAWA Takashi | 33-31 | NAGAO Hiroto |
| NAKAJIMA Tetsuya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NANASE Yuuma |
| YAMAKAWA Takashi | 48-16 | TAKA Hirosuke |
| YAMAKAWA Takashi | 41-23 | OHIKE Yoshinori |
2018-09-15: 8_Tokyo_open(Japan)
2018-09-01: The 2nd Incheon Open(Korea)
2018-06-24: 20180624 6th Beijing Open(China)
2018-06-17: 46_All_Japan_Tokyo_prelim_2(Japan)
2018-03-18: 39_Meijin(Japan)
2018-02-12: 2018_Tokyo_expert_games(Japan)
| YAMAKAWA Takashi | 35-29 | ABE Yura |
| YAMAKAWA Takashi | 38-26 | MONMA Naoto |
| YAMAKAWA Takashi | 35-29 | NARUMI Hisatoshi |
| TAKAMIZAWA Daiki | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | YAMANAKA Masayuki |
| YAMAKAWA Takashi | 43-21 | SAITO Osaki |
| YAMAKAWA Takashi | 46-18 | KIM Jungsoo |
| MIYAZAKI Yuji | 45-19 | YAMAKAWA Takashi |
| FUKUNAGA Kohachi | 35-29 | YAMAKAWA Takashi |
| KIM Taeyeon | 21-43 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 24-40 | OH Joungmok |
| YAMAKAWA Takashi | 44-20 | HA Seungsup |
| LEE Chunae | 17-47 | YAMAKAWA Takashi |
| WANG Wei | 21-43 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | ZHAO Jing |
| JI Zihui | 11-53 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | HU Ying Chong |
| YANG Zailin | 26-38 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | MENG Debiao |
| JIA Baolong | 27-37 | YAMAKAWA Takashi |
| YANG Zailin | 24-40 | YAMAKAWA Takashi |
| ZHAO Jing | 26-38 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 52-12 | KOSHINO Kazuhiko |
| YAMAKAWA Takashi | 53-11 | NAKAZAWA Junichi |
| KIMURA Yuto | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | ISHIDA Kazuaki |
| ASOU Daisuke | won against | YAMAKAWA Takashi |
| TAKAHASHI Hisashi | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | NAGANO Yasushi |
| YAMAKAWA Takashi | won against | MATSUBARA Takashi |
| YAMAKAWA Takashi | won against | GO Shinu |
| SASAKI Sohei | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | won against | ATOBE Shuugo |
| YAMAKAWA Takashi | won against | SAJI Kouya |
| YAMAKAWA Takashi | 34-30 | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | 35-29 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 34-30 | MURAKAMI Takeshi |
| SUEKUNI Makoto | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | SASAKI Kousuke |
| YAMAKAWA Takashi | 37-27 | IWAKURA Hiroaki |
| NAKAJIMA Tetsuya | 39-25 | YAMAKAWA Takashi |
2017-11-11: 122_Chiyarenshi_advanced(Japan)
2017-10-14: 23_Shinagawa_super_league(Japan)
2017-10-08: 6_team_Shinagawa_open(Japan)
2017-09-03: 12_Ouza_sen(Japan)
2017-08-26: 1st Incheon open(Korea)
2017-08-11: 22_Shinagawa_super_league(Japan)
2017-07-16: 45_All_Japan_open_championship(Japan)
2017-07-09: 179_Nagareyama_open(Japan)
2017-06-11: 45_All_Japan_Shikoku_prelim(Japan)
2017-05-07: 85_Q_league(Japan)
2017-05-03: 29_Kyoto_open(Japan)
2017-04-30: 8_Hiroshima_open(Japan)
2017-03-19: 38_Meijin(Japan)
| YAMAKAWA Takashi | 55-09 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 41-23 | NANASE Yuuma |
| NAKAMURA Kazuki | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | 42-22 | ITO Yuji |
| YAMAKAWA Takashi | 37-27 | TAKAHASHI Akihiro |
| NAKANO Jo | 52-12 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | won against | OHMORI Keita |
| NAGANO Yasushi | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 34-30 | FUKUNAGA Kohachi |
| SUEKUNI Makoto | 46-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 52-12 | ISHIGURO Hiroki |
| TAKANASHI Yusuke | 46-18 | YAMAKAWA Takashi |
| KAMIKURA Daisuke | 47-17 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | SHIROTA Yasuto |
| SATANI Tetsu | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | URANO Kento |
| KITAJIMA Hideki | 46-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 34-30 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 37-27 | SHIMOMURA Shiki |
| TAKAHASHI Akihiro | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 63-01 | HONG Hyungbum |
| YAMAMOTO Takashi | 50-14 | YAMAKAWA Takashi |
| GIM Dongsung | 24-40 | YAMAKAWA Takashi |
| HONG Jaeseong | 08-56 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 31-33 | NAKAMORI Hiroki |
| KIYONOBU Kenta | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | TAKAHASHI Hisashi |
| TAKAHASHI Akihiro | 51-13 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 37-27 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 40-24 | OHMORI Keita |
| YAMAKAWA Takashi | 37-27 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 47-17 | SUEKUNI Makoto |
| KAMIKURA Daisuke | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SAJI Kouya |
| MITSUYA Nobuaki | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | MIYAOKA Tamaki |
| NAGANO Yasushi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KUROGI Yuta |
| YAMAKAWA Takashi | won against | SHIMIZU Naoki |
| YAMAKAWA Takashi | 54-10 | AKANE Osahide |
| YAMAKAWA Takashi | 55-09 | SUDA Gadai |
| MATSUMOTO Makoto | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 36-28 | ISOBE Masaki |
| YAMAKAWA Takashi | 53-11 | USHIRO Hideaki |
| YAMAKAWA Takashi | 40-24 | HASHIMOTO Takashi |
| YAMAKAWA Takashi | 47-17 | NAKAYAMA Ryo |
| IKEDA Ryousuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | OKADA Hiroyuki |
| YAMAKAWA Takashi | 40-24 | KAMEMOTO Osamu |
| YAMAKAWA Takashi | 39-25 | SUZUKI Yuuta |
| YAMAKAWA Takashi | 48-16 | HAMADA Naoki |
| YAMAKAWA Takashi | 38-26 | KITANOSHI Ryou |
| YAMAKAWA Takashi | 39-25 | KANZAKI Keisuke |
| YAMAKAWA Takashi | 44-20 | NAKANO Takanao |
| YAMAKAWA Takashi | 44-20 | YAMASHITA Kazuma |
| YAMAKAWA Takashi | 35-29 | MIYAZAKI Yuji |
| YAMAKAWA Takashi | 38-26 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 59-05 | YOSHIDA Shigenobu |
| YAMAKAWA Takashi | 33-31 | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 46-18 | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | 40-24 | YAMAZAKI Keita |
| YAMAKAWA Takashi | 43-21 | OKAMURA Hiroaki |
| YAMAKAWA Takashi | 44-20 | KAMEMOTO Osamu |
| YAMAKAWA Takashi | 36-28 | SUNADA Mayumi |
| YAMAKAWA Takashi | 48-16 | USHIRO Hideaki |
| YAMAKAWA Takashi | 55-09 | MATSUI Takashi |
| YAMAKAWA Takashi | 64-00 | KONO Kikuchi |
| YAMAKAWA Takashi | won against | TAKITA Yohei |
| YAMAKAWA Takashi | won against | NODA Bintatsu |
| OHNO Tomohiro | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ANDO Keito |
| YAMAKAWA Takashi | won against | MURAKAMI Takeshi |
| YAMAKAWA Takashi | won against | GOTO Hiroshi |
| YAMAKAWA Takashi | won against | KANOU Eishi |
2016-10-30: 100_Kanagawa_open(Japan)
2016-09-04: 11_Ouza_sen(Japan)
2016-08-28: 99_Kanagawa_open(Japan)
2016-07-23: 115_Shinagawa_open(Japan)
2016-07-17: 44_All_Japan_open_championship(Japan)
2016-06-26: 44_All_Japan_East_Kanto_prelim(Japan)
2016-05-07 → 2016-05-08: EGP Copenhagen(Denmark)
2016-05-04: 28_Kyoto_open(Japan)
2016-04-30: 1_District_challenge(Japan)
2016-04-23: 112_Shinagawa_open(Japan)
2016-04-17: 168_Nagareyama_open(Japan)
2016-03-20: 37_Meijin(Japan)
2016-02-14: 2016_East_Kanto_expert_games(Japan)
2016-01-03: Shinagawa_open_2016(Japan)
| YAMAKAWA Takashi | 34-30 | NAGANO Yasushi |
| YAMAKAWA Takashi | 34-30 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 37-27 | TAMAKI Kyotaro |
| YAMAKAWA Takashi | 45-19 | SAITO Riki |
| KASAI Masaya | 35-29 | YAMAKAWA Takashi |
| ISHIKAWA Hikaru | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 44-20 | HADA Jun |
| SHIMIZU Naoki | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NAGAO Hiroto |
| YAMAKAWA Takashi | 49-15 | SAITO Riki |
| YAMAKAWA Takashi | 51-13 | TAKIZAWA Masaki |
| YAMAKAWA Takashi | 56-08 | SATANI Tetsu |
| YAMAKAWA Takashi | 41-23 | MATSUMOTO Makoto |
| YAMAKAWA Takashi | 54-10 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 46-18 | TAKANASHI Yusuke |
| SASAKI Kousuke | 34-30 | YAMAKAWA Takashi |
| YAMAMOTO Takashi | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | TAKEDA Kyoko |
| URANO Kento | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | OSHIMA Yusuke |
| YAMAKAWA Takashi | 48-16 | ONUKI Yutaka |
| YAMAKAWA Takashi | 35-29 | NAKANO Jo |
| YAMAKAWA Takashi | 42-22 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | won against | ENOMOTO Hiroyuki |
| SATANI Tetsu | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | OHMORI Keita |
| YAMAKAWA Takashi | won against | SHIMIZU Naoki |
| YAMAKAWA Takashi | won against | ISHIZAKI Hikaru |
| YAMAKAWA Takashi | won against | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 36-28 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 52-12 | TSUCHIYA Shotaro |
| YAMAKAWA Takashi | 44-20 | OHNO Tomohiro |
| YAMAKAWA Takashi | 37-27 | NAGANO Yasushi |
| YAMAKAWA Takashi | 33-31 | SAWADA Takehiko |
| YAMAKAWA Takashi | 49-15 | EVERTS Jeroen |
| STEENTOFT Benkt | 13-51 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | KASHIWABARA Takuji |
| DE GRAAF Jan C. | 14-50 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | EKLUND Oskar |
| YAMAKAWA Takashi | 43-21 | JOHANSSON Erik |
| LUND Erik | 30-34 | YAMAKAWA Takashi |
| GARDEBRINK Christian | 19-45 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 30-34 | FELDBORG Karsten |
| YAMAKAWA Takashi | 34-30 | TASTET Marc |
| KORTENDIJK Albert | 26-38 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 24-40 | EVERTS Jeroen |
| EVERTS Jeroen | 29-35 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | EVERTS Jeroen |
| NAKAMORI Hiroki | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | NAGASHIMA Kouyou |
| YAMAKAWA Takashi | 42-22 | MIYAZAKI Toru |
| YAMAKAWA Takashi | 57-07 | TSUCHIYA Keishiro |
| YAMAKAWA Takashi | 54-10 | SHIMAMURA Yoshihide |
| YAMAKAWA Takashi | 39-25 | FUKUNAGA Kohachi |
| OKAMOTO Kazuki | 40-24 | YAMAKAWA Takashi |
| KASAI Masaya | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | SATO Hisakazu |
| YAMAKAWA Takashi | 43-21 | OHIKE Yoshinori |
| YAMAKAWA Takashi | 33-31 | NAKANO Jo |
| TAKANASHI Yusuke | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | SUEKUNI Makoto |
| YAMAKAWA Takashi | 42-22 | TANIZAWA Misato |
| YAMAKAWA Takashi | 49-15 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | 38-26 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 38-26 | TAMAKI Kyotaro |
| YAMAKAWA Takashi | 39-25 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 35-29 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 54-10 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 37-27 | KOSHINO Kazuhiko |
| YAMAKAWA Takashi | won against | TAYAMA Tsubasa |
| YAMAKAWA Takashi | 37-27 | TAKAHASHI Hisashi |
| HAGIKURA Yutaka | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ISHII Takehiro |
| YAMAKAWA Takashi | won against | OHMORI Keita |
| OHIKE Yoshinori | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAZIMA Hisayuki |
| SUEKUNI Makoto | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SAITO Hiroki |
| YAMAKAWA Takashi | won against | OZAWA Kou |
| YAMAKAWA Takashi | 46-18 | TSUCHIYA Shotaro |
| YAMAKAWA Takashi | 46-18 | AKAGI Tachiro |
| YAMAKAWA Takashi | 44-20 | KURAHASHI Satoshi |
| NAGANO Yasushi | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 58-06 | YAMADA Kazuko |
| YAMAKAWA Takashi | 44-20 | OSHIMA Yusuke |
| NAGANO Yasushi | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 52-12 | KURIHARA Aru |
| SHIMIZU Naoki | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | AKAGI Tachiro |
2015-11-22: Tohoku_open(Japan)
2015-11-01: 95_Kanagawa_open(Japan)
2015-10-12: 16_Shinagawa_super_league(Japan)
2015-10-11: 4_team_Shinagawa_open(Japan)
2015-09-12: 99_Chiyarenshi_open(Japan)
2015-09-06: 10_Ouza_sen(Japan)
2015-08-30: 15_Shinagawa_super_league(Japan)
2015-07-19: 43_All_Japan_open_championship(Japan)
2015-06-14: 43_All_Japan_East_Kanto_prelim(Japan)
2015-05-31: 14_Shinagawa_super_league(Japan)
2015-05-06: Kanto_champ_women_students_pr(Japan)
2015-05-05: 1_Hiroshima_endurance_game_1(Japan)
2015-05-05: 1_Hiroshima_endurance_game_2(Japan)
2015-05-05: 1_Hiroshima_endurance_game_3(Japan)
2015-05-04: 27_Kyoto_open(Japan)
2015-03-28: 99_Shinagawa_open(Japan)
2015-03-22: 36_Meijin(Japan)
2015-03-14: 93_Chiyarenshi_open(Japan)
2015-02-22: 13_Shinagawa_super_league(Japan)
2015-01-10: 91_Chiyarenshi_open(Japan)
2015-01-03: Shinagawa_open_2015(Japan)
| YAMAKAWA Takashi | 42-22 | OKIZAKI Kyo |
| YAMAKAWA Takashi | 34-30 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 36-28 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 35-29 | SATO Hisakazu |
| YAMAKAWA Takashi | 36-28 | NAGAO Hiroto |
| YAMAKAWA Takashi | 33-31 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 42-22 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 43-21 | YAMAKAWA Yasuo |
| YAMAKAWA Takashi | 42-22 | SUGUWARA Kiyoshi |
| KAMIKURA Daisuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | YAMAMOTO Takashi |
| YAMAKAWA Takashi | 36-28 | NODA Bintatsu |
| OHMORI Keita | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 43-21 | NAGANO Yasushi |
| YAMAKAWA Takashi | 34-30 | NAKANO Jo |
| YAMAKAWA Takashi | 36-28 | KAMIKURA Daisuke |
| TAKANASHI Yusuke | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NAKAJIMA Tetsuya |
| KAMIKURA Daisuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | FURUMOTO Yuki |
| KURAHASHI Satoshi | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | 34-30 | TAMAKI Kyotaro |
| YAMAKAWA Takashi | 36-28 | HOASHI Keisuke |
| YAMAKAWA Takashi | 42-22 | TATSUMI-IIJIMA Yukiko |
| OHIKE Yoshinori | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 39-25 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 36-28 | TAMAKI Kyotaro |
| KAMIKURA Daisuke | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NARA Souma |
| YAMAKAWA Takashi | 35-29 | YAMAZAKI Nobuyuki |
| ITO Junya | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NAKANISHI Kazuki |
| YAMAKAWA Takashi | 46-18 | NAKANO Takanao |
| OKAMOTO Kazuki | 37-27 | YAMAKAWA Takashi |
| SATANI Tetsu | 41-23 | YAMAKAWA Takashi |
| NAGANO Yasushi | 35-29 | YAMAKAWA Takashi |
| MURAKAMI Takeshi | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | NAGAO Hiroto |
| YAMAKAWA Takashi | 35-29 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 35-29 | SOUDA Shun |
| YAMAKAWA Takashi | won against | ITO Yuta |
| YAMAKAWA Takashi | won against | OHNO Tomohiro |
| MATSUMOTO Hiroshi | won against | YAMAKAWA Takashi |
| OSHIMIZU Takanori | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | HAMADA Naoki |
| YAMAKAWA Takashi | won against | KURIHARA Aru |
| YAMAKAWA Takashi | 35-29 | ABE Yura |
| YAMAKAWA Takashi | 41-23 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | won against | AKAGI Tachiro |
| YAMAKAWA Takashi | 44-20 | OHNO Tomohiro |
| NAGANO Yasushi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | ISOBE Masaki |
| NARIYA Makoto | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 33-31 | SATANI Tetsu |
| YAMAKAWA Takashi | 33-31 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 40-24 | NAKAJIMA Tetsuya |
| KAMIKURA Daisuke | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | TAKANASHI Yusuke |
| NARIYA Makoto | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | FUKUI Hiroto |
| HORIUCHI Keiko | 38-26 | YAMAKAWA Takashi |
| AKAGI Tachiro | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | SOUDA Shun |
| YAMAKAWA Takashi | 42-22 | KURIHARA Aru |
| YAMAKAWA Takashi | 35-29 | NAKANO Jo |
| TACHIKI Akira | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | SHIRAI Ukyo |
| YAMAKAWA Takashi | 38-26 | HIRATA Toru |
| YAMAKAWA Takashi | 44-20 | YOKOYAMA Naoki |
| YAMAKAWA Takashi | 39-25 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | won against | OKAMOTO Kazuki |
| YAMAKAWA Takashi | won against | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 37-27 | KAMIKURA Daisuke |
| KIYONOBU Kenta | won against | YAMAKAWA Takashi |
| OKADA Hiroyuki | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | MATSUI Takashi |
| YAMAKAWA Takashi | 44-20 | MATSUBARA Akira |
| YAMAKAWA Takashi | 41-23 | USHIRO Hideaki |
| YAMAKAWA Takashi | 36-28 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 47-17 | RYUUKAKU Akihiro |
| YAMAKAWA Takashi | 38-26 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 35-29 | KAMIKURA Daisuke |
| FUKUNAGA Kohachi | 33-31 | YAMAKAWA Takashi |
| KIYONOBU Kenta | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 40-24 | YOSHIDA Shigenobu |
| YAMAKAWA Takashi | 50-14 | YAMAZAKI Keita |
| YAMAKAWA Takashi | 46-18 | YOSHINO Toru |
| YAMAKAWA Takashi | 39-25 | NAKANO Jo |
| YAMAKAWA Takashi | 44-20 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 40-24 | OHMORI Keita |
| OKAMOTO Kazuki | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NAKANO Jo |
| YAMAKAWA Takashi | 40-24 | ITO Junya |
| YAMAKAWA Takashi | 36-28 | OSATO Suguru |
| NAGANO Yasushi | 34-30 | YAMAKAWA Takashi |
| MURAKAMI Takeshi | 38-26 | YAMAKAWA Takashi |
| KURIHARA Aru | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | NAGAE Yuka |
| YAMAKAWA Takashi | won against | AIHARA Shigeaki |
| YAMAKAWA Takashi | won against | TAMENORI Hideshi |
| YAMAKAWA Takashi | won against | TSUCHIDA Daisuke |
| YAMAKAWA Takashi | won against | IWAKURA Hiroaki |
| YAMAKAWA Takashi | won against | ASAHINA Satoshi |
| YAMAKAWA Takashi | won against | SASAKI Sohei |
| TAKANASHI Yusuke | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | IZUMI Takashi |
| YAMAKAWA Takashi | 38-26 | SAITO Aya |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 38-26 | HISHIYAMA Yuichi |
| SUEKUNI Makoto | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 39-25 | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | won against | KAMIKURA Daisuke |
| SATANI Tetsu | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | OHMORI Keita |
| OKAMOTO Kazuki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 36-28 | NAGANO Yasushi |
| YAMAKAWA Takashi | 38-26 | NAKANO Jo |
| KURAHASHI Satoshi | 42-22 | YAMAKAWA Takashi |
| TAKAHASHI Hisashi | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 37-27 | IMOTO Wataru |
| YAMAKAWA Takashi | 35-29 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 42-22 | YAMADA Kazuko |
| YAMAKAWA Takashi | 34-30 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 37-27 | MITSUYA Nobuaki |
| YAMAKAWA Takashi | 36-28 | MATSUMOTO Hiroyuki |
| YAMAKAWA Takashi | 33-31 | KAMIKURA Daisuke |
| SUEKUNI Makoto | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | HISHIYAMA Yuichi |
2014-11-23: Tohoku_open_2014(Japan)
2014-11-02: 90_Kanagawa_open(Japan)
2014-10-12: 3_team_Shinagawa_open(Japan)
2014-10-11: 89_Chiyarenshi_open(Japan)
2014-10-05: 25_Kansai_championship_A(Japan)
2014-10-04: 2_Aobadai_league_cup(Japan)
2014-09-13: 94_Shinagawa_open(Japan)
2014-09-07: 9_Ouza_sen(Japan)
2014-08-31: 89_Kanagawa_open(Japan)
2014-08-09: 88_Chiyarenshi_open(Japan)
2014-08-03: 5_Kanagawa_cup(Japan)
2014-05-10: 92_Shinagawa_open(Japan)
2014-05-03: 26_Kyoto_open(Japan)
2014-04-20: 69_Sendai_open(Japan)
2014-03-23: 35_Meijin(Japan)
2014-03-16: 236_Kawagoe_ranking_games(Japan)
2014-03-09: 151_Nagareyama_open(Japan)
2014-03-02: 87_Kanagawa_open(Japan)
2014-02-16: 25_Sea_of_Japan_open(Japan)
2014-01-16 → 2014-01-17: Othello World Cup 2014(World)
2014-01-12: 2014_Akashi_new_year_open(Japan)
2014-01-11: 4_Kyoto_standings_final(Japan)
2014-01-03: Shinagawa_open_2014(Japan)
| YAMAKAWA Takashi | 40-24 | NAGAO Hiroto |
| KAMIKURA Daisuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | SATO Hisakazu |
| MIURA Toshie | 33-31 | YAMAKAWA Takashi |
| UMEZAWA Yoshinori | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | YOSHIDA Taisaku |
| YAMAKAWA Takashi | 39-25 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 57-07 | IIJIMA Takamune |
| YAMAKAWA Takashi | 54-10 | OHMORI Keita |
| YAMAKAWA Takashi | 35-29 | NODA Bintatsu |
| SATANI Tetsu | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | NISHIO Hakudo |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 34-30 | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | 33-31 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 35-29 | ITO Yuta |
| TOMINAGA Kenta | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | KANOU Eishi |
| YAMAKAWA Takashi | 35-29 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 37-27 | TSUCHIYA Ryosuke |
| YAMAKAWA Takashi | 34-30 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 35-29 | NAGANO Yasushi |
| SUEKUNI Makoto | 33-31 | YAMAKAWA Takashi |
| IIJIMA Takamune | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | NISHIMURA Akihiro |
| YAMAKAWA Takashi | 37-27 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 49-15 | TSUCHIYA Keishiro |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | KIGUCHI Tomoya |
| FUKUNAGA Kohachi | 33-31 | YAMAKAWA Takashi |
| OKAMOTO Kazuki | 34-30 | YAMAKAWA Takashi |
| MATSUMOTO Hiroyuki | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 42-22 | MATSUMOTO Hiroshi |
| TAKANASHI Yusuke | 38-26 | YAMAKAWA Takashi |
| OKAMOTO Kazuki | 33-31 | YAMAKAWA Takashi |
| KAMIKURA Daisuke | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | MABUCHI Yuta |
| YAMAKAWA Takashi | won against | HISHIYAMA Yuichi |
| IWATA Hiroyuki | 33-31 | YAMAKAWA Takashi |
| NAKANO Jo | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | OSATO Suguru |
| SATOMI Takashi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | NAGAO Kazuki |
| YAMAKAWA Takashi | 47-17 | SATANI Tetsu |
| YAMAKAWA Takashi | 35-29 | NAGANO Yasushi |
| NAKANO Jo | 44-20 | YAMAKAWA Takashi |
| KANOU Eishi | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | NAKAMURA Keiko |
| YAMAKAWA Takashi | 44-20 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 38-26 | ITO Junya |
| YAMAKAWA Takashi | 38-26 | IWATA Hiroyuki |
| SATANI Tetsu | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | NISHIO Hakudo |
| ITAGAKI Kenichi | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 34-30 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 33-31 | SHINOHARA Jun |
| YAMAKAWA Takashi | 33-31 | NAGAMATSU Ryota |
| YAMAKAWA Takashi | 37-27 | KAMIKURA Daisuke |
| SUEKUNI Makoto | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | SUGUWARA Kiyoshi |
| YAMAKAWA Takashi | 42-22 | ITAGAKI Kenichi |
| YAMAKAWA Takashi | 33-31 | OHMORI Keita |
| YAMAKAWA Takashi | 40-24 | KAMIKURA Daisuke |
| SATANI Tetsu | 38-26 | YAMAKAWA Takashi |
| NAKANO Jo | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 46-18 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 34-30 | TAKAHASHI Hisashi |
| NAKANO Jo | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 33-31 | NAGAO Hiroto |
| YAMAKAWA Takashi | 40-24 | ASAHINA Satoshi |
| SAITO Riki | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | TANAKA Kousuke |
| YAMAKAWA Takashi | 46-18 | KOBAYASHI Ritsuko |
| YAMAKAWA Takashi | 44-20 | TAMENORI Hideshi |
| YAMAKAWA Takashi | 36-28 | MIYAZAKI Yuji |
| YAMAKAWA Takashi | 37-27 | NAGAO Hiroto |
| YAMAKAWA Takashi | 40-24 | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | 53-11 | KANOU Eishi |
| YAMAKAWA Takashi | 36-28 | IIJIMA Takamune |
| YAMAKAWA Takashi | 35-29 | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | 33-31 | SUGAWARA Misa |
| YAMAKAWA Takashi | 39-25 | OSHIMIZU Takanori |
| YAMAKAWA Takashi | 35-29 | SATO Hisakazu |
| YAMAKAWA Takashi | 37-27 | SAITO Kenta |
| YAMAKAWA Takashi | won against | MURAKAMI Takeshi |
| YAMAKAWA Takashi | won against | IMOTO Wataru |
| YAMAKAWA Takashi | won against | HAYASAKA Toshie |
| YAMAKAWA Takashi | won against | GOTO Masahiro |
| YAMAKAWA Takashi | won against | NAKAMORI Hiroki |
| YAMAKAWA Takashi | won against | SATANI Tetsu |
| SUEKUNI Makoto | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | HISHIYAMA Yuichi |
| TODA Tomoya | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | KURACHI Takayuki |
| YAMAKAWA Takashi | 43-21 | OKAMA Ayumi |
| GOTO Masahiro | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | KITANO Takumi |
| YAMAKAWA Takashi | 39-25 | FUNATSU Asuka |
| YAMAKAWA Takashi | 45-19 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 37-27 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 34-30 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 37-27 | HADA Jun |
| YAMAKAWA Takashi | 50-14 | MITSUYA Nobuaki |
| YAMAKAWA Takashi | 34-30 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 47-17 | SUZUKI Yuta |
| YAMAKAWA Takashi | 39-25 | OHMORI Keita |
| YAMAKAWA Takashi | 33-31 | ASOU Daisuke |
| YAMAKAWA Takashi | 38-26 | SATANI Tetsu |
| YAMAKAWA Takashi | 38-26 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 45-19 | SATO Hisakazu |
| YAMAKAWA Takashi | 61-03 | UMEZAWA Shiho |
| YAMAKAWA Takashi | 37-27 | UMEZAWA Yoshinori |
| TAKIZAWA Masaki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | SUGAWARA Misa |
| YAMAKAWA Takashi | 42-22 | AIHARA Shigeaki |
| YAMAKAWA Takashi | 39-25 | TAKIZAWA Masaki |
| YAMAKAWA Takashi | 47-17 | KOH Bo Xiang |
| LEE Choon Foong | 31-33 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 29-35 | MURAKAMI Takeshi |
| PAW Su Lin Kenneth | 24-40 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | OHNO Tomohiro |
| TAKANASHI Yusuke | 30-34 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | GOTO Hiroshi |
| YAMAKAWA Takashi | 29-35 | TOMINAGA Kenta |
| TAKIZAWA Masaki | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 28-36 | NAKAJIMA Tetsuya |
| SUEKUNI Makoto | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | MURATA Takumi |
| YAMAKAWA Takashi | 33-31 | NAKAOKA Akinori |
| NAKAMORI Hiroki | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | OGURA Yuusei |
| YAMAKAWA Takashi | 33-31 | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 36-28 | KIYONOBU Kenta |
| YAMAKAWA Takashi | 33-31 | MATSUMOTO Hiroshi |
| NAKAMORI Hiroki | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | OGURA Yuusei |
| KIYONOBU Kenta | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 37-27 | SUGASE Takahiro |
| SAITO Riki | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | GOTO Hiroshi |
| YAMAKAWA Takashi | won against | SATO Naohiro |
| YAMAKAWA Takashi | 40-24 | YOKOYAMA Taka |
| NAKAJIMA Tetsuya | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | NAGAO Hiroto |
| YAMAKAWA Takashi | 33-30 | IMOTO Wataru |
2013-12-22: Kyushu_open_2013(Japan)
2013-12-14: 90_Shinagawa_open(Japan)
2013-12-08: 149_Nagareyama_open(Japan)
2013-12-01: 22_Kawasaki_open(Japan)
2013-11-24: 66_Sendai_open(Japan)
2013-11-03: 85_Kanagawa_open(Japan)
2013-10-24 → 2013-10-26: WOC 2013 (Stockholm)(World)
2013-10-13: 2_team_Shinagawa_open(Japan)
2013-10-06: 24_Kansai_champ_A(Japan)
2013-09-15: 13_Saitama_open(Japan)
2013-09-01: 8_Ouza_sen(Japan)
2013-07-14: 41_All_Japan_open_championhship(Japan)
2013-07-06: 146_Nagareyama_open(Japan)
2013-06-30: 41_All_Japan_east_Kanto_prelim(Japan)
2013-05-03: 25_Kyoto_open(Japan)
2013-03-31: 34_Meijin(Japan)
2013-01-13: 144_Nagareyama_open(Japan)
| YAMAKAWA Takashi | 34-30 | MAEDA Gen |
| YAMAKAWA Takashi | 64-00 | SHIMOKAWA Atsuji |
| YAMAKAWA Takashi | 44-20 | SENTOKU Hidefumi |
| YAMAKAWA Takashi | 52-12 | ESAKI Kazuhiro |
| YAMAKAWA Takashi | 48-16 | SENTOKU Hidefumi |
| YAMAKAWA Takashi | 47-17 | TSUCHIYA Ryosuke |
| MURAKAMI Takeshi | won against | YAMAKAWA Takashi |
| AKAGI Tachiro | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-26 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 41-23 | KOIDE Satoshi |
| YAMAKAWA Takashi | 37-27 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 38-26 | MITSUYA Nobuaki |
| YAMAKAWA Takashi | 49-15 | WATANABE Keiichi |
| YAMAKAWA Takashi | 38-26 | KOBAYASHI Manabu |
| AKAGI Tachiro | 46-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | OKAMA Ayumi |
| YAMAKAWA Takashi | 47-17 | GOTO Masahiro |
| YAMAKAWA Takashi | 41-23 | TODA Tomoya |
| YAMAKAWA Takashi | 52-12 | SUZUKI Kenji |
| YAMAKAWA Takashi | 40-24 | SATANI Tetsu |
| YAMAKAWA Takashi | 33-31 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 36-28 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 49-15 | HISHIYAMA Yuichi |
| MITSUYA Nobuaki | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | HORIGOME Shijin |
| YAMAKAWA Takashi | 38-26 | GOTO Masahiro |
| YAMAKAWA Takashi | 36-28 | SATO Hisakazu |
| YAMAKAWA Takashi | 40-24 | SUGAWARA Misa |
| OSHIMIZU Takanori | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | ITAGAKI Kenichi |
| YAMAKAWA Takashi | 37-27 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 46-18 | ASOU Daisuke |
| SATANI Tetsu | 47-17 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 49-15 | KOSHINO Kazuhiko |
| YAMAKAWA Takashi | 34-30 | SHIROTA Yasuto |
| LIGHTMAN Marie | 08-56 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 22-42 | VORACEK Miroslav |
| REUNES Nick | 30-34 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 52-12 | ENG Tintin |
| TURUNEN Daniel | 28-36 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | OKAMOTO Kazuki |
| SCHOTTE Tom | 23-41 | YAMAKAWA Takashi |
| AUNCHULEE Rujipas | 27-37 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 29-35 | TASTET Marc |
| YAMAKAWA Takashi | 34-30 | TANIDA Kunihiko |
| VAN DEN BIGGELAAR Nicky | 30-34 | YAMAKAWA Takashi |
| SEELEY Ben | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 32-32 | BORASSI Michele |
| OKAMOTO Kazuki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 28-36 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 36-28 | VAN DEN BIGGELAAR Nicky |
| YAMAKAWA Takashi | 37-27 | NAKANO Jo |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 37-27 | OHMORI Keita |
| YAMAKAWA Takashi | 38-26 | MATSUMOTO Hiroshi |
| SUEKUNI Makoto | 36-28 | YAMAKAWA Takashi |
| MIYAZAKI Yuji | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 61-03 | ASANO Yoshiko |
| YAMAKAWA Takashi | 37-27 | YOSHIDA Shigenobu |
| YAMAKAWA Takashi | 37-27 | MATSUMOTO Hiroyuki |
| YAMAKAWA Takashi | 37-27 | FUKUNAGA Kohachi |
| YAMAKAWA Takashi | 36-28 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 42-22 | TSUCHIYA Keishiro |
| YAMAKAWA Takashi | 57-07 | NAKANISHI Kazuki |
| YAMAKAWA Takashi | 64-00 | KANDA Ren |
| YAMAKAWA Takashi | 34-30 | NARUMI Hisatoshi |
| GOTO Hiroshi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | MATSUMOTO Takaki |
| YAMAKAWA Takashi | 50-14 | URANO Kento |
| YAMAKAWA Takashi | 54-10 | KURACHI Takayuki |
| YAMAKAWA Takashi | 46-18 | KAMEMOTO Osamu |
| YAMAKAWA Takashi | 41-23 | NAGAO Hiroto |
| YAMAKAWA Takashi | 38-26 | KAMEDA Ryota |
| YAMAKAWA Takashi | 51-13 | OHMORI Keita |
| YAMAKAWA Takashi | 33-31 | WAKIMOTO Naoyuki |
| YAMAKAWA Takashi | 35-29 | TODA Tomoya |
| YAMAKAWA Takashi | 38-26 | SUEKUNI Makoto |
| YAMAKAWA Takashi | won against | NAKAMURA Keiko |
| YAMAKAWA Takashi | won against | SHIMIZU Naoki |
| KURITA Seiya | won against | YAMAKAWA Takashi |
| TODA Tomoya | won against | YAMAKAWA Takashi |
| SHIRAI Ukyo | won against | YAMAKAWA Takashi |
| KURODA Takuji | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | KURACHI Takayuki |
| YAMAKAWA Takashi | 43-21 | FUNATSU Asuka |
| YAMAKAWA Takashi | 55-09 | GOTO Masahiro |
| YAMAKAWA Takashi | 36-28 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 47-17 | HAYASAKA Toshie |
| MIYAZAKI Yuji | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | KATORI Michihiro |
| YAMAKAWA Takashi | 42-22 | IKEDA Yuki |
| YAMAKAWA Takashi | 56-08 | SANO Joichiro |
| YAMAKAWA Takashi | 34-30 | AKAGI Tachiro |
| YAMAKAWA Takashi | 33-31 | SATO Koichiro |
| YAMAKAWA Takashi | 46-18 | ISHIKAWA Hiroyuki |
| YAMAKAWA Takashi | 56-08 | MATSUYA Shinpei |
| YAMAKAWA Takashi | 42-22 | KATSURA Hisatoshi |
| TAMENORI Hideshi | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | OHIKE Yoshinori |
| YAMAKAWA Takashi | 44-20 | SUEKUNI Makoto |
| SUGASE Takahiro | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKIZAWA Nobuyuki |
| YAMAKAWA Takashi | won against | KOSHINO Kazuhiko |
| YAMAKAWA Takashi | won against | ITAGAKI Kenichi |
| KURITA Seiya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | won against | WILLIAM Joanna |
| YAMAKAWA Takashi | won against | TAKANASHI Yusuke |
| YAMAKAWA Takashi | won against | FUNATSU Asuka |
| YAMAKAWA Takashi | 42-22 | HADA Jun |
| YAMAKAWA Takashi | 33-31 | MITSUYA Nobuaki |
| NAGAMATSU Ryota | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 53-11 | OHMORI Keita |
2012-11-11: OWC2013_qualification(Japan)
2012-10-06: 1_team_Shinagawa_open(Japan)
2012-09-02: 7_Ouza_sen(Japan)
2012-07-18: 40_All_Japan_champ(Japan)
2012-07-14: 82_Shinagawa_open(Japan)
2012-06-10: 40_All_Japan_Azumazeki_prelim(Japan)
2012-05-03: 24_Kyoto_open(Japan)
2012-03-20: 2_attached_rank_open(Japan)
2012-03-18: 137_Nagareyama_open(Japan)
2012-03-10: 80_Shinagawa_open(Japan)
2012-03-04: Meijin_groupB(Japan)
2012-02-12: 2012_Azumazeki_Higashi_expert_game(Japan)
2012-01-03: Shinagawa_open_2012(Japan)
| YAMAKAWA Takashi | won against | MORI Takahiro |
| YAMAKAWA Takashi | won against | TAKAHASHI Hisashi |
| UMEZAWA Yoshinori | won against | YAMAKAWA Takashi |
| KANEDA Shigeru | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKIGAWA Mitsuaki |
| MURAKAMI Takeshi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | TANAKA Shuntaro |
| OHMORI Keita | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | TAKAHASHI Hisashi |
| YAMAKAWA Takashi | 35-29 | NAKANO Jo |
| YAMAKAWA Takashi | 39-25 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 37-27 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 47-17 | TOJO Atsushi |
| YAMAKAWA Takashi | 35-29 | MITSUYA Nobuaki |
| KURITA Seiya | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | OKAMOTO Kazuki |
| KANOU Eishi | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | IDE Akiko |
| TSUKAMOTO Kazuma | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | won against | TOJO Atsushi |
| YAMAKAWA Takashi | won against | NODA Bintatsu |
| YAMAKAWA Takashi | won against | TAKIZAWA Masaki |
| TODA Tomoya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | KIMURA Yuto |
| YAMAKAWA Takashi | 40-24 | OHE Yoshimaru |
| YAMAKAWA Takashi | 39-25 | SANO Yoko |
| NAKAJIMA Tetsuya | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | TATSUMI-IIJIMA Yukiko |
| YAMAKAWA Takashi | 39-25 | IKEDA Yuki |
| YAMAKAWA Takashi | 40-24 | IKEDA Yuki |
| YAMAKAWA Takashi | 49-15 | KOBAYASHI Manabu |
| OHNO Tomohiro | 43-21 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 51-13 | HONMA Yosuke |
| YAMAKAWA Takashi | 38-26 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | 47-17 | MATSUMOTO Kishie |
| YAMAKAWA Takashi | 61-03 | MABUCHI Yuta |
| YAMAKAWA Takashi | 38-26 | ESAKI Yuta |
| YAMAKAWA Takashi | 35-29 | SUEKUNI Makoto |
| YAMAKAWA Takashi | 46-18 | FURUSAWA Toyoki |
| KAMEDA Ryota | 32-32 | YAMAKAWA Takashi |
| FUKUNAGA Kohachi | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | NAGAMATSU Ryota |
| YAMAKAWA Takashi | 36-28 | KAMIKURA Daisuke |
| YAMAKAWA Takashi | 36-28 | ASAHINA Satoshi |
| YAMAKAWA Takashi | 37-27 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 51-13 | ITO Junya |
| YAMAKAWA Takashi | 46-18 | OKAWA Chieko |
| YAMAKAWA Takashi | 51-13 | FUNATSU Asuka |
| YAMAKAWA Takashi | 61-03 | MATSUYA Shinpei |
| YAMAKAWA Takashi | 43-21 | KURIHARA Kyousuke |
| YAMAKAWA Takashi | 33-31 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | won against | OHNO Tomohiro |
| MABUCHI Yuta | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | IIJIMA Takamune |
| ITO Junya | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SUEKUNI Makoto |
| YAMAKAWA Takashi | 33-31 | TASAKA Kanichiro |
| YAMAKAWA Takashi | won against | IMOTO Wataru |
| YAMAKAWA Takashi | 43-21 | MITSUYA Nobuaki |
| KURAHASHI Satoshi | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 46-18 | HAGA Kazutoshi |
| YAMAKAWA Takashi | 48-16 | SUEKUNI Makoto |
| YAMAKAWA Takashi | 37-27 | NAGAO Hiroto |
| YAMAKAWA Takashi | 36-28 | TANIZAWA Misato |
| YAMAKAWA Takashi | 38-26 | ASAKAWA Takuya |
| MITSUYA Nobuaki | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 38-26 | NAGANO Yasushi |
| YAMAKAWA Takashi | 56-08 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 42-22 | IKEDA Yuki |
| NARUMI Hisatoshi | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | MUSAKA Shizue |
| YAMAKAWA Takashi | 35-29 | KANEKO Kodai |
| YAMAKAWA Takashi | 35-29 | ASAHINA Satoshi |
| YAMAKAWA Takashi | 34-30 | SATO Koichiro |
| ITO Junya | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KOSHINO Kazuhiko |
| ASOU Daisuke | 33-31 | YAMAKAWA Takashi |
2011-12-23: 5_greenery_S_class_league(Japan)
2011-12-10: 73_Chiyarenshi(Japan)
2011-08-28: 6_Ouza_sen(Japan)
2011-08-07: 2_Kanagawa_Katsuhu_open(Japan)
2011-07-17: 39_Japan_open_Champ(Japan)
2011-07-09: 76_Shinagawa_open(Japan)
2011-07-03: 73_Kanagawa_open(Japan)
2011-06-19: 39_Japan_champ_Azumazeki_prelim(Japan)
2011-05-29: 32_Meijin(Japan)
2011-02-13: 12_Shinagawa_super_league(Japan)
2011-02-06: 2011 Azumazeki_Higashi_expert_game(Japan)
2011-01-22: Tenno_expert_games(Japan)
| YAMAKAWA Takashi | 34-30 | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | 34-30 | OKAMOTO Kazuki |
| YAMAKAWA Takashi | 34-30 | TODA Tomoya |
| FUKUNAGA Kohachi | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | SUGASE Takahiro |
| YAMAKAWA Takashi | 37-27 | ITO Junya |
| YAMAKAWA Takashi | 34-30 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 45-19 | NAGAO Hiroto |
| SUEKUNI Makoto | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | IWATA Hiroyuki |
| TAKANASHI Yusuke | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 40-24 | OHIKE Yoshinori |
| YAMAKAWA Takashi | 37-27 | NODA Bintatsu |
| YAMAKAWA Takashi | 40-24 | SATO Reiko |
| YAMAKAWA Takashi | 36-28 | SUEKUNI Makoto |
| YAMAKAWA Takashi | 38-26 | TODA Tomoya |
| KURITA Seiya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 64-00 | ISHIZU Yuto |
| YAMAKAWA Takashi | 56-08 | TAKIGAWA Mitsuaki |
| YAMAKAWA Takashi | 46-18 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | 40-24 | SATANI Tetsu |
| YAMAKAWA Takashi | 40-24 | IMOTO Wataru |
| IWATA Hiroyuki | 32-32 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TSUCHIYA Keishiro |
| OKAMOTO Kazuki | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KANDA Yoshihiro |
| YAMAKAWA Takashi | won against | NAKAMORI Chiaki |
| YAMAKAWA Takashi | won against | ISHIZAKI Hikaru |
| YAMAKAWA Takashi | won against | ESAKI Yuta |
| YAMAKAWA Takashi | 36-28 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 46-17 | UEDA Mikiya |
| YAMAKAWA Takashi | 40-24 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 38-26 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 35-29 | MAEHIRA Yusuke |
| TAKANASHI Yusuke | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | SHIMIZU Ryusei |
| YAMAKAWA Takashi | 46-18 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 39-25 | SATANI Tetsu |
| YAMAKAWA Takashi | 36-28 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 37-27 | NOBUKAWA Hiroki |
| YAMAKAWA Takashi | 40-24 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 57-07 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 53-11 | SHIBASAKI Lily |
| YAMAKAWA Takashi | 41-23 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | 51-13 | TACHIKI Akira |
| YAMAKAWA Takashi | 45-19 | TAKIZAWA Nobuyuki |
| YAMAKAWA Takashi | 56-08 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | won against | ASAI Takahiro |
| YAMAKAWA Takashi | won against | MIYAZAKI Toru |
| YAMAKAWA Takashi | won against | NAMIKI Kazunari |
| YAMAKAWA Takashi | won against | SASAKI Sohei |
| NUNOME Naoya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | GOTO Masahiro |
| YAMAKAWA Takashi | won against | SATANI Tetsu |
| YAMAKAWA Takashi | 41-23 | IWAKURA Hiroaki |
| YAMAKAWA Takashi | 38-26 | IIJIMA Takamune |
| YAMAKAWA Takashi | 33-31 | SATANI Tetsu |
| HAGIKURA Yutaka | 41-23 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 36-28 | TOKI Yugo |
| YAMAKAWA Takashi | 37-27 | IKEDA Yuki |
| YAMAKAWA Takashi | 38-26 | NARUMI Hisatoshi |
| YAMAKAWA Takashi | 37-27 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 45-19 | NAGANO Yasushi |
| YAMAKAWA Takashi | 38-26 | NAGANO Yasushi |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 35-29 | YAMAKAWA Takashi |
| NAKAMORI Chiaki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ESAKI Yuta |
2010-12-25: Shinagawa_champ(Japan)
2010-12-23: 127_Nagareyama_open(Japan)
2010-12-12: 11_Inuyama_open(Japan)
2010-11-20: 49_King_state(Japan)
2010-09-25: 9_area_resistance(Japan)
2010-09-12: 10_Inuyama_open(Japan)
2010-08-29: 5_Ouza_sen(Japan)
2010-08-08: 124_Nagareyama_open(Japan)
2010-08-01: 1_Kanagawa_Katsuhu_open(Japan)
2010-07-18: 38_Japan_Open_Champ(Japan)
2010-06-05: 67_Shinagawa_open(Japan)
2010-05-09: 9_Inuyama_open(Japan)
2010-05-03: 22_Kyoto_open(Japan)
2010-04-03: 65_Shinagawa_open(Japan)
2010-03-28: 39_King_State(Japan)
2010-03-21: 31_Meijin(Japan)
2010-03-14: 120_Nagareyama_open(Japan)
2010-03-07: 1_Nakagyo_open(Japan)
2010-02-21: 2010_Azumazeki_Higashi_expert_game(Japan)
2010-02-14: 8_Inuyama_open(Japan)
2010-01-03: Shinagawa_open_2010(Japan)
| YAMAKAWA Takashi | 33-31 | SATANI Tetsu |
| YAMAKAWA Takashi | 34-30 | SATANI Tetsu |
| TAKANASHI Yusuke | 42-22 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | UMEMURA Yuji |
| YAMAKAWA Takashi | 60-04 | KOBAYASHI Manabu |
| SATO Koichiro | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | SATO Reiko |
| YAMAKAWA Takashi | 41-23 | SAITO Riki |
| YAMAKAWA Takashi | 41-23 | ISHIKAWA Akira |
| NAGANO Yasushi | 33-31 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | IIJIMA Takamune |
| MURAKAMI Takeshi | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | NAKAMORI Chiaki |
| YAMAKAWA Takashi | 34-30 | MATSUYA Shinpei |
| YAMAKAWA Takashi | 44-20 | KOMAGATA Masayuki |
| YAMAKAWA Takashi | 34-30 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 37-27 | NAGANO Yasushi |
| MURAKAMI Takeshi | 33-31 | YAMAKAWA Takashi |
| HAGIKURA Yutaka | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | ENOMOTO Yasuhiro |
| YAMAKAWA Takashi | 45-19 | KOBAYASHI Oh |
| NAKAMORI Chiaki | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | OHTAKE Kosuke |
| YAMAKAWA Takashi | 38-25 | WATANABE Keiichi |
| YAMAKAWA Takashi | 35-29 | KURAHASHI Satoshi |
| YAMAKAWA Takashi | 33-31 | NODA Bintatsu |
| YAMAKAWA Takashi | won against | ISHIZAKI Hikaru |
| MATSUYA Shinpei | 45-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | NAKAJIMA Tetsuya |
| IWATA Hiroyuki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 36-28 | KANEDA Shigeru |
| TAKANASHI Yusuke | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | TANAKA Atsushi |
| YAMAKAWA Takashi | 35-29 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 32-32 | TAKIZAWA Masaki |
| YAMAKAWA Takashi | 37-27 | AKASHI Tomone |
| YAMAKAWA Takashi | 34-30 | SAITO Aya |
| YAMAKAWA Takashi | 46-18 | TODA Tomoya |
| KURITA Seiya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | HADA Jun |
| IWATA Hiroyuki | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | KURAHASHI Satoshi |
| YAMAKAWA Takashi | 52-12 | NARUMI Hisatoshi |
| WATAHIKI Kenta | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 62-02 | YATOME Karin |
| YAMAKAWA Takashi | 34-30 | NAGASHIMA Kazuhito |
| MURAKAMI Takeshi | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | IMOTO Wataru |
| YAMAKAWA Takashi | 36-28 | SAITO Riki |
| YAMAKAWA Takashi | 41-23 | SATO Koichiro |
| TANAKA Shuntaro | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | won against | YOSHIYUKI Suganuma |
| SASAKI Sohei | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | NUNOME Naoya |
| YAMAKAWA Takashi | won against | SUZUKI Yuta |
| YAMAKAWA Takashi | won against | KANEDA Shigeru |
| YAMAKAWA Takashi | 39-25 | KOZIMA Ochachi |
| YAMAKAWA Takashi | 38-26 | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 39-25 | TOKI Hidenobu |
| YAMAKAWA Takashi | 34-30 | SUZUKI Yuta |
| YAMAKAWA Takashi | 36-28 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 37-27 | ISHIKAWA Akira |
| WATAHIKI Kenta | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NAGANO Yasushi |
| YAMAKAWA Takashi | 41-23 | NARIYA Makoto |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| AKASHI Tomone | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | NOBUKAWA Hiroki |
| YAMAKAWA Takashi | 35-29 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 32-32 | MIYAOKA Tamaki |
| YAMAKAWA Takashi | 52-12 | GOTO Masahiro |
| YAMAKAWA Takashi | 59-05 | SHIMAMURA Yoshihide |
| YAMAKAWA Takashi | 41-23 | YOSHIYUKI Suganuma |
| OHIKE Yoshinori | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 33-31 | ITO Junya |
| YAMAKAWA Takashi | 38-26 | TANIZAWA Misato |
| YAMAKAWA Takashi | 48-16 | TATSUMI-IIJIMA Yukiko |
| NAKAJIMA Tetsuya | 40-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | TANAKA Irie |
| YAMAKAWA Takashi | 39-25 | MIYAZAKI Yuji |
| IWATA Hiroyuki | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | IMOTO Wataru |
| YAMAKAWA Takashi | 39-25 | TOMINAGA Kenta |
| TAKANASHI Yusuke | 34-30 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | NARIYA Makoto |
| YAMAKAWA Takashi | 35-29 | MATSUMOTO Hiroyuki |
| YAMAKAWA Takashi | 64-00 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 64-00 | KAMIO Mamoru |
| KAMEMOTO Osamu | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 64-00 | YOSHIDA Ryota |
| YAMAKAWA Takashi | 64-00 | KATO Yuzuru |
| OKAMOTO Kazuki | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | SANO Joichiro |
| YAMAKAWA Takashi | 46-18 | TOKI Hidenobu |
| YAMAKAWA Takashi | 37-27 | TOMINAGA Kenta |
| YAMAKAWA Takashi | 44-20 | HAGIKURA Yutaka |
| TAKANASHI Yusuke | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 53-11 | TSUCHIDA Daisuke |
| NAKAMORI Hiroki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | TAKAHASHI Kikuchi |
| YAMAKAWA Takashi | 42-22 | NAKAMORI Chiaki |
| TAKANASHI Yusuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | TOKUDA Naoya |
| YAMAKAWA Takashi | 35-29 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 38-26 | OKAWA Akira |
| YAMAKAWA Takashi | 35-29 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 43-21 | SATO Reiko |
| YAMAKAWA Takashi | 38-26 | HAGIKURA Yutaka |
| OHNO Tomohiro | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | NOBUKAWA Hiroki |
| YAMAKAWA Takashi | 36-28 | AKASHI Tomone |
| YAMAKAWA Takashi | 34-30 | NAGANO Yasushi |
| YAMAKAWA Takashi | won against | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | won against | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 35-29 | IWATA Hiroyuki |
| TOMINAGA Kenta | 42-22 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | HISHIYAMA Yuichi |
| YAMAKAWA Takashi | 64-00 | KAMEDA Ryota |
| YAMAKAWA Takashi | 43-21 | SANO Joichiro |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 34-30 | KURITA Seiya |
| YAMAKAWA Takashi | 36-28 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 33-31 | ITO Junya |
2009-12-26: Shinagawa_open_2009(Japan)
2009-12-12: 118_Nagareyama_open(Japan)
2009-10-12: 7_Inuyama_open(Japan)
2009-09-06: 4_Ouza_sen(Japan)
2009-08-09: 6_Inuyama_open(Japan)
2009-08-01: 59_Shinagawa_open(Japan)
2009-07-26: 33_King_State_(Japan)
2009-07-19: 37_Japan_Champ(Japan)
2009-07-04: 58_Shinagawa_Open(Japan)
2009-06-14: 37_Japan_Champ_Azumazeki_prelim(Japan)
2009-05-03: 21_Kyoto_Open(Japan)
2009-05-02: 56_Shinagawa_Open(Japan)
2009-04-04: 55_Shinagawa_Open(Japan)
2009-03-29: 30_Meijin(Japan)
2009-02-15: 4_Shinagawa_Open(Japan)
2009-02-11: 2009_Amumazeki_Higashi_Open(Japan)
2009-01-03: Shinagawa_2009(Japan)
| NAGANO Yasushi | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | TAKAGI Kazutaka |
| YAMAKAWA Takashi | 48-16 | YOSHIDA Ryota |
| OKUDA Tsuyoshi | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 57-07 | TATENO Ryuuji |
| YAMAKAWA Takashi | 35-29 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 42-22 | KURAMOCHI Yuta |
| YAMAKAWA Takashi | 35-29 | ITO Junya |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | KOZUKA Katsuhiko |
| MURAKAMI Takeshi | 33-31 | YAMAKAWA Takashi |
| TANIDA Kunihiko | 33-31 | YAMAKAWA Takashi |
| AKASHI Tomone | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 40-24 | KAWAKAMI Yoshihiro |
| YAMAKAWA Takashi | 37-27 | TAKIZAWA Masaki |
| YAMAKAWA Takashi | 39-25 | OHMORI Keita |
| KURITA Seiya | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | GOTO Hiroshi |
| OKAMOTO Kazuki | 35-29 | YAMAKAWA Takashi |
| NAGASAKI Hidekazu | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | ISHIKAWA Akira |
| IWATA Hiroyuki | 43-21 | YAMAKAWA Takashi |
| ITO Junya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | KOSHINO Kazuhiko |
| NAGASHIMA Kazuhito | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | KOBAYASHI Oh |
| TATSUMI-IIJIMA Yukiko | 34-30 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | NAGANO Yasushi |
| YAMAKAWA Takashi | 34-30 | KOMAGATA Masayuki |
| YAMAKAWA Takashi | 40-24 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 45-19 | TAKIGAWA Mitsuaki |
| YAMAKAWA Takashi | 38-26 | KANDA Yoshihiro |
| YAMAKAWA Takashi | 34-30 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 36-28 | NAGANO Yasushi |
| YAMAKAWA Takashi | 41-22 | MATSUYA Shinpei |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | won against | MATSUMOTO Hiroshi |
| YAMAKAWA Takashi | won against | KIUCHI Hideyuki |
| YAMAKAWA Takashi | won against | OKAWA Akira |
| YAMAKAWA Takashi | won against | OHIKE Yoshinori |
| TAKIZAWA Masaki | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KURITA Seiya |
| YAMAKAWA Takashi | 38-26 | TAKANO Satoshi |
| YAMAKAWA Takashi | 39-24 | ROSE Brian |
| YAMAKAWA Takashi | 37-27 | SATANI Tetsu |
| NAKAJIMA Tetsuya | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | ENOMOTO Hiroyuki |
| YAMAKAWA Takashi | 33-31 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 37-27 | YAMADA Yuichi |
| YAMAKAWA Takashi | 48-16 | HAGIKURA Yutaka |
| YAMAKAWA Takashi | 35-29 | ISHII Kiyotaka |
| YAMAKAWA Takashi | 51-13 | OHTAKE Kosuke |
| SAKAGUCHI Kazuhiro | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | NAGANO Yasushi |
| YAMAKAWA Takashi | 43-21 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 43-21 | IKEDA Atsuhiko |
| YAMAKAWA Takashi | 39-25 | UNO Toshihiro |
| TAKANASHI Yusuke | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | YOSHIYUKI Suganuma |
| ESAKI Yuta | 33-31 | YAMAKAWA Takashi |
| OHIKE Yoshinori | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 38-26 | SATO Koichiro |
| YAMAKAWA Takashi | 43-21 | NAGASAKI Hidekazu |
| SAKA Hiroshi | 33-31 | YAMAKAWA Takashi |
| MIYAZAKI Yuji | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | KYOSAKA Yutsu |
| YAMAKAWA Takashi | 40-24 | SHIMONOSONO Kozo |
| YAMAKAWA Takashi | 34-30 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 34-30 | MURAKAMI Takeshi |
| YAMAKAWA Takashi | 39-25 | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | 34-30 | IIJIMA Takamune |
| MIYAZAKI Yuji | 39-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | NAKANO Jo |
| YAMAKAWA Takashi | 33-31 | TOMINAGA Kenta |
| YAMAKAWA Takashi | 33-31 | MIYAZAKI Toru |
| GOTO Hiroshi | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | MIYAOKA Tamaki |
| YAMAKAWA Takashi | 33-31 | MIYAZAKI Yuji |
| YAMAKAWA Takashi | 39-25 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 46-18 | ISHIKAWA Akira |
| YAMAKAWA Takashi | 37-27 | OZAWA Kou |
| TAKANASHI Yusuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | IWATA Hiroyuki |
| YAMAKAWA Takashi | 42-22 | WATAHIKI Kenta |
| MIYAZAKI Yuji | 48-16 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | SATO Yuri |
| YAMAKAWA Takashi | 33-31 | YAMADA Yuichi |
| YAMAKAWA Takashi | 44-20 | ISHII Kiyotaka |
| YAMAKAWA Takashi | 38-26 | KOBAYASHI Makoto |
| YAMAKAWA Takashi | 34-30 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 37-27 | TSUJI Shinji |
| YAMAKAWA Takashi | 33-31 | NARIYA Makoto |
| YAMAKAWA Takashi | 59-05 | WATANABE Hideaki |
| ITO Junya | 46-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | TESAKI Satoru |
| TAKANASHI Yusuke | 40-24 | YAMAKAWA Takashi |
| NAKAMORI Hiroki | 45-19 | YAMAKAWA Takashi |
2008-12-28: 27_King_State(Japan)
2008-12-27: Shinagawa_2008_A(Japan)
2008-12-23: 26_King_State(Japan)
2008-12-14: 3_Shinagawa_Open(Japan)
2008-12-06: 52_Shinagawa_open(Japan)
2008-09-28: 4_Chiba_Open(Japan)
2008-09-20: 26_King_State_special_A(Japan)
2008-09-07: 59_Kanagawa_Open_B(Japan)
2008-09-06: 49_Shinagawa_open(Japan)
2008-08-26: 28_CH_Student_Final(Japan)
2008-08-26: 28_CH_Student_Prelim(Japan)
2008-08-24: 3_Ouza_sen(Japan)
2008-08-23: 8_Anti_Resistance_Game(Japan)
2008-08-10: 2_Shinagawa(Japan)
2008-08-03: 41_Nagoya_Open(Japan)
2008-08-02: 4_Chubu_Open(Japan)
2008-07-27: 17_King_state_Open(Japan)
2008-06-28: 16th King state special(Japan)
2008-06-15: Azumazeki conference(Japan)
2008-06-07: 46_Shinagawa_open(Japan)
2008-04-13: 103rd Nagareyama open(Japan)
2008-03-23: 29_Meijin(Japan)
2008-03-23: 29_Meijin_finals(Japan)
2008-03-02: 57th Kanagawa Open(Japan)
2008-03-01: 43_Shinagawa_open(Japan)
2008-02-16: 20th King state cup B(Japan)
2008-02-10: 8th king state special(Japan)
| YAMAKAWA Takashi | 42-22 | IZUMI Takashi |
| YAMAKAWA Takashi | 41-23 | KOZUKA Katsuhiko |
| YAMAKAWA Takashi | 44-20 | WATANABE Hideaki |
| NAKAJIMA Tetsuya | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | SUKO Masayuki |
| YAMAKAWA Takashi | won against | OHMORI Keita |
| YAMAKAWA Takashi | 37-27 | NAGASAKI Hidekazu |
| ITO Junya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | WATANABE Hideaki |
| YAMAKAWA Takashi | 33-31 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 49-15 | TAKIGAWA Mitsuaki |
| MIYAZAKI Yuji | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | KOBAYASHI Oh |
| NAKAJIMA Tetsuya | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | NAKAMORI Hiroki |
| YAMAKAWA Takashi | 35-29 | WATAHIKI Kenta |
| NAKAJIMA Tetsuya | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 45-19 | SATO Koichiro |
| YAMAKAWA Takashi | 41-23 | ITO Junya |
| YAMAKAWA Takashi | 34-30 | TAKANASHI Yusuke |
| NAKAMURA Yuya | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | SUGISAKI Harumi |
| YAMAKAWA Takashi | 34-30 | NAKAMURA Yuya |
| YAMAKAWA Takashi | 37-27 | HISHIYAMA Yuichi |
| NAKAJIMA Tetsuya | 33-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | TAKANASHI Yusuke |
| YAMAKAWA Takashi | 43-21 | SUZUKI Yuta |
| YAMAKAWA Takashi | 40-24 | TANAKA Atsushi |
| YAMAKAWA Takashi | 47-17 | SUZUKI Yuta |
| YAMAKAWA Takashi | 41-23 | SANO Yoko |
| YAMAKAWA Takashi | 34-30 | ITO Junya |
| YAMAKAWA Takashi | 45-19 | KURAMOCHI Yuta |
| YAMAKAWA Takashi | 48-16 | SATO Yuri |
| YAMAKAWA Takashi | 48-16 | WATANABE Hideaki |
| YAMAKAWA Takashi | 45-19 | TANAKA Shuntaro |
| YAMAKAWA Takashi | 48-16 | NAGASHIMA Kazuhito |
| ENOMOTO Yasuhiro | 44-20 | YAMAKAWA Takashi |
| IWATA Hiroyuki | 35-29 | YAMAKAWA Takashi |
| ITO Junya | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | NOBUKAWA Hiroki |
| YAMAKAWA Takashi | 58-06 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 33-31 | HIKARU Hidemi |
| YAMAKAWA Takashi | 44-20 | ESAKI Yuta |
| IWATA Hiroyuki | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | KURITA Seiya |
| YAMAKAWA Takashi | 39-25 | SAWADA Tomohiro |
| ESAKI Yuta | 33-31 | YAMAKAWA Takashi |
| MURAKAMI Takeshi | 35-29 | YAMAKAWA Takashi |
| HIKARU Hidemi | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | HOSHI Ryuichi |
| YAMAKAWA Takashi | 45-19 | WATANABE Hideaki |
| YAMAKAWA Takashi | 33-31 | OZAWA Kou |
| YAMAKAWA Takashi | 33-31 | NAGANO Yasushi |
| YAMAKAWA Takashi | 33-31 | ARAKI Kentaro |
| YAMAKAWA Takashi | 33-31 | MITSUYA Nobuaki |
| YAMAKAWA Takashi | 33-31 | NAKAMURA Yuya |
| YAMAKAWA Takashi | 33-31 | SATO Koichiro |
| YAMAKAWA Takashi | 33-31 | KAWAGUCHI Yuuki |
| YAMAKAWA Takashi | 33-31 | ENOMOTO Yasuhiro |
| MITSUYA Nobuaki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | ARAKI Kentaro |
| YAMAKAWA Takashi | 33-31 | SATO Koichiro |
| YAMAKAWA Takashi | 41-23 | YASUJIMA Yuji |
| YAMAKAWA Takashi | 48-16 | SATAKE Yosuke |
| WATAHIKI Kenta | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | ARAKI Yasuyuki |
| YAMAKAWA Takashi | 36-28 | OHMORI Keita |
| YAMAKAWA Takashi | 37-27 | TAMENORI Hideshi |
| WATANABE Hajime | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | SATAKE Yosuke |
| YAMAKAWA Takashi | 42-22 | OHIKE Yoshinori |
| KOBAYASHI Nosei | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | NAGASHIMA Kazuhito |
| YAMAKAWA Takashi | 48-16 | YASUJIMA Yuji |
| TSUKAMOTO Kazuma | 46-18 | YAMAKAWA Takashi |
| NOBUKAWA Hiroki | 49-15 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | KOZUKA Katsuhiko |
| YAMAKAWA Takashi | 42-22 | TSUCHIDA Daisuke |
| TAKANASHI Yusuke | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | NAGASHIMA Kazuhito |
| YAMAKAWA Takashi | 36-28 | KOUKAWA Satoshi |
| YAMAKAWA Takashi | 34-30 | MATSUMOTO Hiroyuki |
| ESAKI Yuta | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | IZUMI Shinichi |
| YAMAKAWA Takashi | 47-17 | OHMORI Keita |
| YAMAKAWA Takashi | 49-15 | TSUCHIDA Daisuke |
| WATANABE Hideki | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | NAKAMORI Chiaki |
| YAMAKAWA Takashi | 44-20 | UNO Toshihiro |
| TSUJI Shinji | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | TSUCHIDA Daisuke |
| YAMAKAWA Takashi | 37-27 | OHIKE Yoshinori |
| YAMAKAWA Takashi | 45-19 | KIBA Kenta |
| YAMAKAWA Takashi | 43-21 | OKUDA Tsuyoshi |
| ENOMOTO Yasuhiro | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | WATAHIKI Yoshiharu |
| NAKAJIMA Tetsuya | 43-21 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | TOMINAGA Kenta |
| YAMAKAWA Takashi | 39-25 | IWATA Hiroyuki |
| YAMAKAWA Takashi | won against | KOBAYASHI Oh |
| YAMAKAWA Takashi | won against | NODA Bintatsu |
| KATO Yuzuru | lost to | YAMAKAWA Takashi |
| NAGASAKI Hidekazu | won against | YAMAKAWA Takashi |
| TAKANASHI Yusuke | won against | YAMAKAWA Takashi |
| KOSHINO Kazuhiko | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KOBAYASHI Manabu |
| YAMAKAWA Takashi | won against | OHUCHI Yasuhiro |
| TACHIKI Akira | lost to | YAMAKAWA Takashi |
| KATORI Michihiro | lost to | YAMAKAWA Takashi |
| UEDA Mikiya | won against | YAMAKAWA Takashi |
| OKAWA Akira | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 54-10 | SATO Koichiro |
| YAMAKAWA Takashi | 37-27 | KITOU Shota |
| WATANABE Hajime | 33-31 | YAMAKAWA Takashi |
| ITO Junya | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 42-22 | NAGAMATSU Ryota |
| YAMAKAWA Takashi | 41-23 | OHMORI Keita |
| YAMAKAWA Takashi | won against | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | won against | NAGAMATSU Yoshiyuki |
| WATAHIKI Kenta | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | FUNATSU Asuka |
| YAMAKAWA Takashi | won against | WAKIMOTO Naoyuki |
| YAMAKAWA Takashi | 33-31 | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | 33-31 | IIJIMA Takamune |
| YAMAKAWA Takashi | 33-31 | KURACHI Takayuki |
| YAMAKAWA Takashi | 33-31 | SAKAGUCHI Kazuhiro |
| YAMAKAWA Takashi | 33-31 | SUGASE Takahiro |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| MIYAOKA Tamaki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKAHASHI Kanji |
| YAMAKAWA Takashi | won against | KOSHINO Kazuhiko |
| NAGASAKI Hidekazu | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | WATAHIKI Kenta |
| TAMAKI Kyotaro | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SATAKE Yosuke |
| YAMAKAWA Takashi | 53-11 | MORI Takahiro |
| YAMAKAWA Takashi | 38-26 | ITO Junya |
| YAMAKAWA Takashi | 39-25 | WATANABE Hideaki |
| YAMAKAWA Takashi | won against | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 37-27 | NAKAJIMA Tetsuya |
| YAMAKAWA Takashi | 43-21 | KURAMOCHI Yuta |
| YAMAKAWA Takashi | won against | TAMAKI Kyotaro |
| YAMAKAWA Takashi | won against | KOMAGATA Masayuki |
| NAKAJIMA Tetsuya | won against | YAMAKAWA Takashi |
| NAGASAKI Hidekazu | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KURAMOCHI Yuta |
| SANO Yoko | won against | YAMAKAWA Takashi |
| TANAKA Shuntaro | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | OHNO Atsuko |
| YAMAKAWA Takashi | won against | IIJIMA Takamune |
| YAMAKAWA Takashi | won against | TATSUMI-IIJIMA Yukiko |
| OKAMOTO Akihiko | won against | YAMAKAWA Takashi |
| IWATA Hiroyuki | won against | YAMAKAWA Takashi |
2007-10-06: 40th Shinagawa seaside opening(Japan)
2007-10-06: 40_Shinagawa_open(Japan)
2007-09-16: 2_Ouza_sen(Japan)
2007-09-02: 39th Shinagawa seaside tournament(Japan)
2007-09-01: 39_Shinagawa_open(Japan)
2007-07-15: Japanese Othello Championship(Japan)
2007-07-07: 37_Shinagawa_open(Japan)
2007-05-13: 5th Ueno Open(Japan)
2007-05-05: 35_Shinagawa_open(Japan)
2007-05-03: 19_Kyoto_open(Japan)
2007-04-07: 34_Shinagawa_open(Japan)
2007-03-25: 28_Meijin_finals(Japan)
2007-03-03: 33_Shinagawa_open(Japan)
| YAMAKAWA Takashi | won against | KOBAYASHI Manabu |
| YAMAKAWA Takashi | won against | IIJIMA Takamune |
| YAMAKAWA Takashi | won against | SATANI Tetsu |
| NAKAJIMA Tetsuya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | won against | NODA Bintatsu |
| YAMAKAWA Takashi | 53-11 | KOBAYASHI Manabu |
| YAMAKAWA Takashi | 37-27 | IIJIMA Takamune |
| YAMAKAWA Takashi | 37-27 | SATANI Tetsu |
| NAKAJIMA Tetsuya | 48-16 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 36-28 | NODA Bintatsu |
| YAMAKAWA Takashi | lost to | KITAJIMA Hideki |
| ENOMOTO Yasuhiro | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TOJO Atsushi |
| YAMAKAWA Takashi | won against | KOZUKA Katsuhiko |
| YAMAKAWA Takashi | won against | TAKAHASHI Yoshiko |
| TSUJI Shinji | lost to | YAMAKAWA Takashi |
| KAWARADA Yuichi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KOIDE Satoshi |
| YAMAKAWA Takashi | won against | OKUDA Tsuyoshi |
| KOMAGATA Masayuki | won against | YAMAKAWA Takashi |
| TAKANASHI Yusuke | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SHIROTA Yasuto |
| YAMAKAWA Takashi | 42-22 | KOIDE Satoshi |
| YAMAKAWA Takashi | 50-14 | OKUDA Tsuyoshi |
| KOMAGATA Masayuki | 42-22 | YAMAKAWA Takashi |
| TAKANASHI Yusuke | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | SHIROTA Yasuto |
| TOKUDA Naoya | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KURACHI Takayuki |
| YAMAKAWA Takashi | won against | HIRABAYASHI Eiji |
| YAMAKAWA Takashi | won against | SAITO Tadayuki |
| YAMAKAWA Takashi | won against | MATSUMOTO Hiroyuki |
| YAMAKAWA Takashi | won against | TAKIZAWA Masaki |
| YAMAKAWA Takashi | 42-22 | OKUDA Tsuyoshi |
| ROSE Brian | 43-21 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | IIJIMA Takamune |
| TAKANASHI Yusuke | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 46-18 | TANAKA Amane |
| YAMAKAWA Takashi | 34-30 | KANDA Yoshihiro |
| YAMAKAWA Takashi | won against | KOBAYASHI Manabu |
| SAWADA Tomohiro | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TANAKA Shuntaro |
| YAMAKAWA Takashi | won against | ROSE Brian |
| YAMAKAWA Takashi | won against | TAMAKI Kyotaro |
| YAMAKAWA Takashi | 35-29 | SATO Koichiro |
| YAMAKAWA Takashi | 39-25 | TANAKA Kazuo |
| YAMAKAWA Takashi | 38-26 | WATAHIKI Kenta |
| YAMAKAWA Takashi | 39-25 | OHHASHI Tomoshige |
| MIYAOKA Tamaki | 41-23 | YAMAKAWA Takashi |
| ITO Junya | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 40-24 | TATSUMI Atsushi |
| IWATA Hiroyuki | 40-24 | YAMAKAWA Takashi |
| FUNAKOSHI Shogo | 44-20 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 49-15 | NAMI Yoneda |
| YAMAKAWA Takashi | 54-10 | OKUDA Masashi |
| YAMAKAWA Takashi | 36-28 | OKAMOTO Kazuki |
| SUGASE Takahiro | 32-32 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 46-18 | SATAKE Yosuke |
| YAMAKAWA Takashi | 49-15 | HAGIKURA Yutaka |
| IWATA Hiroyuki | 37-27 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 33-31 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 38-26 | ENOMOTO Yasuhiro |
| NAGASAKI Hidekazu | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 35-29 | SHIMIZU Ryusei |
| IZUMI Takashi | 34-30 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | HIRABAYASHI Mihoko |
| YAMAKAWA Takashi | 53-11 | YOSHIDA Yoshiaki |
| NAGASHIMA Kazuhito | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | KAMEMOTO Osamu |
| TAMAKI Kyotaro | 47-17 | YAMAKAWA Takashi |
| HOSHI Ryuichi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 59-05 | KAWAGUCHI Yuuki |
| YAMAKAWA Takashi | 57-07 | WATANABE Keiichi |
| YAMAKAWA Takashi | 44-20 | ISHIHARA Makoto |
| YAMAKAWA Takashi | 47-17 | IIJIMA Takamune |
2006-08-26: 1_Ouza_sen(Japan)
2006-08-13: 3rd Kanto Game(Japan)
2006-07-16: 34th All Japan(Japan)
2006-04-08: 23_Shinagawa_open(Japan)
2006-03-26: 27_Meijin(Japan)
2006-02-18: 2nd Kanto Game(Japan)
2006-01-14: 21_Shinagawa_open(Japan)
| YAMAKAWA Takashi | 33-31 | TOMINAGA Kenta |
| YAMAKAWA Takashi | 49-15 | TAKIZAWA Nobuyuki |
| YAMAKAWA Takashi | 47-17 | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 42-22 | NODA Bintatsu |
| SAKAGUCHI Kazuhiro | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | HAGA Kazutoshi |
| HIRAKAWA Yuki | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | OHNO Atsuko |
| YAMAKAWA Takashi | won against | MURAKAMI Takeshi |
| NODA Bintatsu | won against | YAMAKAWA Takashi |
| TOMINAGA Kenta | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KIMURA Keigo |
| YAMAKAWA Takashi | won against | SUKO Masayuki |
| NODA Bintatsu | won against | YAMAKAWA Takashi |
| GOTO Hiroshi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | TAKIZAWA Masaki |
| YAMAKAWA Takashi | won against | IIJIMA Takamune |
| YAMAKAWA Takashi | won against | SAKAGUCHI Kazuhiro |
| YAMAKAWA Takashi | won against | TANIDA Kunihiko |
| YAMAKAWA Takashi | 39-25 | KUSUMOTO Nobushige |
| YAMAKAWA Takashi | 49-15 | DOJUN Makiko |
| YAMAKAWA Takashi | 46-18 | SAWAKI Yusuke |
| TOMINAGA Kenta | 50-14 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | OKAWA Akira |
| NARIYA Makoto | 40-24 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 64-00 | URA Satoru |
| YAMAKAWA Takashi | 64-00 | ASOU Daisuke |
| YAMAKAWA Takashi | 64-00 | HOSHI Ryuichi |
| SUEKUNI Makoto | 64-00 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 64-00 | FUNAKOSHI Shogo |
| YAMAKAWA Takashi | 64-00 | OSHIMIZU Takanori |
| NAKANO Shunsuke | 64-00 | YAMAKAWA Takashi |
| IIDA Hiroshi | won against | YAMAKAWA Takashi |
| KANOU Yuki | won against | YAMAKAWA Takashi |
| KOBAYASHI Manabu | won against | YAMAKAWA Takashi |
| NAKANO Maseru | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | SAWADA Tomohiro |
| NOGAMI Yoshiyuki | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | 63-01 | TSUMURA Satoshi |
| YAMAKAWA Takashi | 41-23 | YAMAGUCHI Yoshiaki |
| YAMAKAWA Takashi | 33-31 | NAKAJIMA Tetsuya |
| MIGAMO Shinya | 41-23 | YAMAKAWA Takashi |
2005-12-10: 20_Shinagawa_open(Japan)
2005-10-15: 18_Shinagawa_open(Japan)
2005-08-13: 1st Kanto Game(Japan)
2005-08-06: 16_Shinagawa_open(Japan)
2005-07-03: Kana othello Open(Japan)
2005-06-04: 14_Shinagawa_open(Japan)
2005-05-07: 13_Shinagawa_open(Japan)
2005-04-09: 12_Shinagawa_open(Japan)
2005-03-20: 26_Meijin(Japan)
2005-03-12: 11_Shinagawa_open(Japan)
2005-02-12: 10_Shinagawa_open(Japan)
2005-01-15: 9_Shinagawa_open(Japan)
| MIGAMO Shinya | 43-21 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | SATO Tetsuya |
| YAMAKAWA Takashi | 54-10 | KOIDE Satoshi |
| YAMAKAWA Takashi | 45-19 | ITAGAKI Kenichi |
| NAGASAKI Hidekazu | 37-27 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 49-15 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 38-26 | NAGASAKI Hidekazu |
| YAMAKAWA Takashi | 34-30 | KASHIWAGI Mitsuyoshi |
| YAMAKAWA Takashi | 53-11 | MIYAKE Yasuo |
| ISHII Yasuhiro | 39-25 | YAMAKAWA Takashi |
| WATANABE Hajime | 44-20 | YAMAKAWA Takashi |
| KASHIWAGI Mitsuyoshi | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | KINOSHITA Hiroko |
| YAMAKAWA Takashi | won against | TACHIKI Akira |
| YAMAKAWA Takashi | won against | SAWAKI Yusuke |
| HIRAKAWA Yuki | won against | YAMAKAWA Takashi |
| SUEKUNI Makoto | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | OHNO Atsuko |
| YAMAKAWA Takashi | 41-23 | OKUDA Tsuyoshi |
| YAMAKAWA Takashi | 36-28 | IIDA Hiroshi |
| YAMAKAWA Takashi | 56-08 | MIGAMO Shinya |
| YAMAKAWA Takashi | 33-31 | NAGASAKI Hidekazu |
| NAKAJIMA Tetsuya | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | WATANABE Satiko |
| TOMINAGA Kenta | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | won against | ENOMOTO Yasuhiro |
| YAMAKAWA Takashi | won against | ITAGAKI Kenichi |
| YAMAKAWA Takashi | won against | YAMAGUCHI Yoshiaki |
| YAMAKAWA Takashi | won against | OGAWA Daisuke |
| YAMAKAWA Takashi | 39-25 | KOZUKA Katsuhiko |
| YAMAKAWA Takashi | 37-27 | TAKASHIMA Ryoji |
| IIDA Hiroshi | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | TACHIKI Akira |
| YAMAKAWA Takashi | 37-27 | SATOMI Satoshi |
| SHIMIZU Kouichi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 49-15 | TOKUMARU Go |
| HIRAKAWA Yuki | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | SHIMONOSONO Kozo |
| YAMAKAWA Takashi | 48-16 | TANIDA Kunihiko |
| TAKEDA Kyoko | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 39-25 | IIDA Hiroshi |
| YAMAKAWA Takashi | 49-15 | TANIDA Kunihiko |
| YAMAKAWA Takashi | 38-26 | SHIMIZU Kouichi |
| NAGASAKI Hidekazu | 46-18 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 51-13 | IWASAKI Toshinori |
| YAMAKAWA Takashi | 42-22 | SAWAKI Yusuke |
| NAKAJIMA Tetsuya | 49-15 | YAMAKAWA Takashi |
| DATE Yuji | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 56-08 | HIKAWA Yoshio |
| TANAKA Shuntaro | 33-31 | YAMAKAWA Takashi |
| SAITO Wenkuchi | 39-25 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | SHIMIZU Kouichi |
| YAMAKAWA Takashi | 40-24 | MAKINO Mizuho |
| NAGASHIMA Kazuhito | 44-20 | YAMAKAWA Takashi |
| OHMORI Keita | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 37-27 | YOSHIDA Yoshiaki |
| IIDA Hiroshi | 38-26 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 47-17 | YAMAZAKI Nobuyuki |
| YAMAKAWA Takashi | 40-24 | SHIMONOSONO Kozo |
| YAMAKAWA Takashi | 55-09 | TODA Tomoya |
| WATANABE Hideaki | 33-31 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 38-26 | MIGAMO Shinya |
| YAMAKAWA Takashi | 42-22 | SAWA Kentaro |
| YAMAKAWA Takashi | 41-23 | SATAKE Yosuke |
| TANIDA Kunihiko | 38-26 | YAMAKAWA Takashi |
| TANAKA Shuntaro | 33-31 | YAMAKAWA Takashi |
| IIDA Hiroshi | 55-09 | YAMAKAWA Takashi |
| NAKAJIMA Tetsuya | 52-12 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | SAWAKI Yusuke |
| ITO Yuji | won against | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 52-12 | HORIUCHI Keiko |
2004-11-13: 7_Shinagawa_open(Japan)
2004-09-11: 5_Shinagawa_open(Japan)
2004-08-07: 4_Shinagawa_open(Japan)
2004-07-03: 3_Shinagawa_open(Japan)
2004-06-12: 2_Shinagawa_open(Japan)
2004-03-27: 25_Meijin_junior(Japan)
| NAKAJIMA Tetsuya | 41-23 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 50-14 | WATANABE Keiichi |
| IIDA Hiroshi | 46-18 | YAMAKAWA Takashi |
| SUKO Masayuki | 50-14 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 41-23 | HORIUCHI Keiko |
| YAMAKAWA Takashi | 34-30 | OHUCHI Yasuhiro |
| YAMAKAWA Takashi | 36-28 | KAWABATA Seiji |
| ITO Yuji | 35-29 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 43-21 | KAGAWA Yoichi |
| YAMAKAWA Takashi | 40-24 | TERAI Satoshi |
| YAMAKAWA Takashi | 35-29 | HAYASHI Yusuke |
| WATANABE Hajime | 41-23 | YAMAKAWA Takashi |
| MURAKAMI Takeshi | 48-16 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 44-20 | TATSUMI-IIJIMA Yukiko |
| TAKASHIMA Ryoji | 48-16 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 57-07 | ENOMOTO Yasuhiro |
| YAMAKAWA Takashi | 45-19 | HOSHI Ryuichi |
| YAMAKAWA Takashi | 40-24 | SUKO Masayuki |
| YAMAKAWA Takashi | 51-13 | OZAKI Toyomitsu |
| MURAKAMI Takeshi | 49-15 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 52-12 | NISHIBA Yasuo |
| YAMAKAWA Takashi | 64-00 | TAMAGAWA Hirotaka |
| NAKAJIMA Tetsuya | 56-08 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 36-28 | NODA Bintatsu |
| YAMAKAWA Takashi | 42-22 | WATANABE Keiichi |
| SUEKUNI Makoto | 41-23 | YAMAKAWA Takashi |
| KASHIWAGI Mitsuyoshi | 45-19 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 48-16 | IRABU Chohei |
| YAMAKAWA Takashi | 34-30 | ITO Yuji |
| YAMAKAWA Takashi | 38-26 | KAWABATA Seiji |
| YAMAKAWA Takashi | 37-27 | KOICHI Naoto |
| WATANABE Hideki | 36-28 | YAMAKAWA Takashi |
| YAMAKAWA Takashi | 34-30 | TACHIKI Akira |
| YAMAKAWA Takashi | 39-25 | NAKAMURA Shunsuke |
| FURUMOTO Yuki | 49-15 | YAMAKAWA Takashi |
| OKAMOTO Junya | 34-30 | YAMAKAWA Takashi |
2003-03-22: 2_Master_junior(Japan)
| YAMAKAWA Takashi | 38-26 | YAHIRO Yuki |
| YAMAKAWA Takashi | 50-14 | KUBO Kimihiro |
| KAWABATA Hidehiro | 38-26 | YAMAKAWA Takashi |
| TACHIKI Akira | 34-30 | YAMAKAWA Takashi |
| SAITO Keita | 34-30 | YAMAKAWA Takashi |
| IMURA Yuki | 50-14 | YAMAKAWA Takashi |
| UTSUMI Syun | 49-15 | YAMAKAWA Takashi |