Ratings
YUUKI Kousei (Japan)
Japanese name(s): 結城皓征70 tournaments
418 results
Player ID: 12341
Rated 87 in Japan and 99 in Asia&Oceania&Africa and 111 in the World
Latest rating: 2229
418 results
Player ID: 12341
Rated 87 in Japan and 99 in Asia&Oceania&Africa and 111 in the World
Latest rating: 2229
2025-09-15: 30_Shinagawa_super_league(Japan)
2025-07-13: 18_Ouza_Sen(Japan)
2025-06-29: 136_Sendai_open(Japan)
2025-05-04: Ryusho_cup(Japan)
2025-05-03: 232_Nagareyama_open(Japan)
2025-04-29: 2_Koyama_open(Japan)
2025-04-20: 134_Sendai_open(Japan)
2025-03-16: 45_Meijin(Japan)
2025-02-23: 45_Tohoku_meijin_match(Japan)
2025-01-04: Shinagawa_open_2025(Japan)
| TAKAHASHI Akihiro | 40-24 | YUUKI Kousei |
| TANIDA Kunihiko | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 35-29 | KIKUCHI Seiten |
| UMEDA Yuwa | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | KIMURA Kohiroshi |
| NAKAMURA Rintaro | 43-21 | YUUKI Kousei |
| NAGANO Yasushi | 64-00 | YUUKI Kousei |
| YUUKI Kousei | won against | TOHIKA Ken |
| YUUKI Kousei | won against | ITO Kenshun |
| YUUKI Kousei | won against | SATO Minato |
| YUUKI Kousei | won against | OSHIMIZU Takanori |
| YUUKI Kousei | won against | TOKIWA Shuto |
| YOKOSAWA Haruko | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 43-21 | KUZUHARA Makoto |
| YUUKI Kousei | 40-24 | OSATO Manabu |
| YUUKI Kousei | 38-26 | KAWAMURA Akio |
| YUUKI Kousei | 32-32 | OSHIMIZU Takanori |
| YUUKI Kousei | 51-13 | WADA Chiaki |
| TOKIWA Shuto | 36-28 | YUUKI Kousei |
| YUUKI Kousei | 37-27 | ODA Akari |
| YUUKI Kousei | 34-30 | ASOU Daisuke |
| IWAKURA Hiroaki | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | KUNIO Yukihiro |
| YUUKI Kousei | 37-27 | TAKAHASHI Hisashi |
| YUUKI Kousei | 63-01 | KAWANA Toshiaki |
| YUUKI Kousei | 39-25 | NAKAMURA Shunsuke |
| UMEDA Yuwa | 64-00 | YUUKI Kousei |
| NARA Souma | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 35-29 | OKUDA Tsuyoshi |
| YUUKI Kousei | 56-08 | SATO Minato |
| YUUKI Kousei | 37-27 | TATENO Ryuuji |
| UMEDA Yuwa | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 51-13 | UENO Ukie |
| KOMATSU Kanaharu | 32-32 | YUUKI Kousei |
| YUUKI Kousei | 46-18 | KURACHI Takayuki |
| YUUKI Kousei | 53-11 | YOKOSAWA Haruko |
| YOKOSAWA Haruko | 32-32 | YUUKI Kousei |
| YUUKI Kousei | 35-29 | SATO Hisakazu |
| YUUKI Kousei | 34-30 | UMEDA Yuwa |
| KAWAMURA Akio | 34-30 | YUUKI Kousei |
| OSHIMIZU Takanori | 48-16 | YUUKI Kousei |
| YUUKI Kousei | 54-10 | MIURA Kohei |
| YUUKI Kousei | won against | HARABAYASHI Ryo |
| YUUKI Kousei | won against | TSUCHIGANE Taishi |
| YUUKI Kousei | won against | SUGIYAMA Tomoyuki |
| KURAHASHI Satoshi | won against | YUUKI Kousei |
| MIYAZAKI Yuji | won against | YUUKI Kousei |
| YUUKI Kousei | won against | KIMURA Shion |
| YUUKI Kousei | won against | YOKOSAWA Haruko |
| YUUKI Kousei | 53-11 | KUZUHARA Makoto |
| YUUKI Kousei | 35-29 | KAWAMURA Shitoshi |
| YUUKI Kousei | 42-22 | TAMARU Akari |
| SATO Hisakazu | 36-28 | YUUKI Kousei |
| NARA Souma | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 53-11 | MIURA Wataru |
| YUUKI Kousei | 52-12 | SHIUJI Shunsuke |
| TOMITA Yo | won against | YUUKI Kousei |
| YUUKI Kousei | 37-27 | MEISHO Yuta |
| YUUKI Kousei | 44-20 | YAMAMOTO Yuta |
| KIYONOBU Kenta | 36-28 | YUUKI Kousei |
| NAGASHIMA Kazuhito | 40-24 | YUUKI Kousei |
2024-12-22: 131_Sendai_open(Japan)
2024-12-08: 86_Niigata_conf(Japan)
2024-10-13: Star_camp_2024(Japan)
2024-09-08: 50_All_Japan_championship(Japan)
2024-08-18: 128_Sendai_open(Japan)
2024-08-11: 225_Nagareyama_open(Japan)
2024-07-21: 17_Ouza_Sen(Japan)
2024-07-14: 50_All_Japan_Tohoku_prelim(Japan)
2024-06-16: 127_Sendai_open(Japan)
2024-05-26: 1_Tsukuba_open(Japan)
2024-04-28: 2024_Kawagoe_queen_match(Japan)
2024-04-14: 125_Sendai_open(Japan)
2024-03-17: 44_Meijin(Japan)
2024-03-16: 44_Meijin_students(Japan)
2024-03-10: 124_Sendfai_open(Japan)
2024-02-25: 2024_Tohoku_expert_games(Japan)
2024-01-07: 122_Kanagawa_open_B(Japan)
| YUUKI Kousei | 38-26 | TAYAMA Tsubasa |
| YUUKI Kousei | 59-05 | MIURA Wataru |
| YUUKI Kousei | 37-27 | OSHIMIZU Takanori |
| YUUKI Kousei | 38-26 | SATO Hisakazu |
| YOKOSAWA Haruko | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 38-26 | KAWAMURA Shitoshi |
| YUUKI Kousei | 41-23 | HASEGAWA Takeshi |
| YUUKI Kousei | 51-13 | AIHARA Shigeaki |
| TAKIZAWA Masaki | 34-30 | YUUKI Kousei |
| NAGAO Hiroto | 36-28 | YUUKI Kousei |
| KAWAI Shinobu | 42-22 | YUUKI Kousei |
| NAGAO Hiroto | 34-30 | YUUKI Kousei |
| TAKIZAWA Nobuyuki | 46-18 | YUUKI Kousei |
| OSHIMIZU Takanori | 36-28 | YUUKI Kousei |
| YUUKI Kousei | 48-16 | HORIUCHI Keiko |
| UMEZAWA Yoshinori | 35-29 | YUUKI Kousei |
| SAJI Kouya | 33-31 | YUUKI Kousei |
| YUUKI Kousei | won against | TATSUMI-IIJIMA Yukiko |
| YUUKI Kousei | 64-00 | KITAJIMA Satoya |
| URANO Kento | won against | YUUKI Kousei |
| KOBAYASHI Takao | won against | YUUKI Kousei |
| OKUDAIRA Fuyumi | won against | YUUKI Kousei |
| IWASHINA Ryosuke | won against | YUUKI Kousei |
| YUUKI Kousei | won against | TANAKA Michiko |
| YUUKI Kousei | 41-23 | SATO Hisakazu |
| YUUKI Kousei | 53-11 | TAKEUCHI Ren |
| YUUKI Kousei | 34-30 | TAMARU Akari |
| YUUKI Kousei | 40-24 | OSHIMIZU Takanori |
| YUUKI Kousei | 35-29 | YOKOSAWA Haruko |
| YUUKI Kousei | 49-15 | KUZUHARA Makoto |
| YUUKI Kousei | 36-28 | RIMUKEN Shuuto |
| YUUKI Kousei | 37-27 | YUUKI Kokujin |
| TOKIWA Shuto | 41-23 | YUUKI Kousei |
| YUUKI Kousei | 48-16 | ISHIKAWA Hikaru |
| YUUKI Kousei | 57-07 | KOBAYASHI Manabu |
| YUUKI Kousei | 40-24 | NARA Souma |
| FUKUCHI Keisuke | won against | YUUKI Kousei |
| SATANI Tetsu | won against | YUUKI Kousei |
| YUUKI Kousei | won against | HAYASAKA Toshie |
| GOTO Hiroshi | won against | YUUKI Kousei |
| SHIROTA Yasuto | won against | YUUKI Kousei |
| YUUKI Kousei | won against | UNO Toshihiro |
| SATO Hisakazu | 34-30 | YUUKI Kousei |
| YUUKI Kousei | 64-00 | MIURA Wataru |
| YUUKI Kousei | 41-23 | KAWAMURA Akio |
| YOKOSAWA Haruko | 47-17 | YUUKI Kousei |
| YUUKI Kousei | 33-31 | ISHII Takehiro |
| YUUKI Kousei | 49-15 | HORIUCHI Keiko |
| YUUKI Kousei | 49-15 | MIURA Wataru |
| YUUKI Kousei | 54-10 | HANASAKA Ryu |
| OSHIMIZU Takanori | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 56-08 | MIYA Kyoko |
| YUUKI Kousei | 46-18 | YOKOSAWA Haruko |
| TAMARU Akari | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 41-23 | KOMATSU Kanaharu |
| YUUKI Kousei | 36-28 | IZUMI Takashi |
| YUUKI Kousei | 33-31 | TSUCHIGANE Taishi |
| KURAHASHI Satoshi | 49-15 | YUUKI Kousei |
| YUUKI Kousei | 38-26 | HASEGAWA Takeshi |
| YUUKI Kousei | 33-31 | UMEDA Yuwa |
| YUUKI Kousei | 48-16 | JINBO Taichi |
| YUUKI Kousei | 54-10 | NISHIBAYASHI Touya |
| YUUKI Kousei | 49-15 | AOKI Daichi |
| YUUKI Kousei | 37-27 | SANO Joichiro |
| YUUKI Kousei | 36-28 | UMEDA Yuwa |
| KURAHASHI Satoshi | 35-29 | YUUKI Kousei |
| OSHIMIZU Takanori | 45-19 | YUUKI Kousei |
| SATO Hisakazu | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 58-06 | ITO Rin |
| NARA Souma | 38-26 | YUUKI Kousei |
| KUZUHARA Makoto | 32-32 | YUUKI Kousei |
| OSHIMIZU Takanori | won against | YUUKI Kousei |
| YUUKI Kousei | won against | IIDA Kanata |
| YUUKI Kousei | won against | SASAKI Sohei |
| HASEGAWA Takeshi | won against | YUUKI Kousei |
| YUUKI Kousei | won against | ISHIDA Ren |
| LAM Maverick | won against | YUUKI Kousei |
| YUUKI Kousei | won against | TAJIMA Isao |
| YUUKI Kousei | 49-15 | OHGA Nao |
| YUUKI Kousei | 33-31 | KURAHASHI Satoshi |
| YUUKI Kousei | 51-13 | MEISHO Yuta |
| YAKUSHIJI Kenta | 40-24 | YUUKI Kousei |
| HARADA Shota | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 48-16 | ITO Rin |
| YUUKI Kousei | 33-31 | WADA Masaki |
| YUUKI Kousei | 39-25 | HANASAKA Ryu |
| YUUKI Kousei | 40-24 | OSHIMIZU Takanori |
| YUUKI Kousei | 37-27 | HASEGAWA Takeshi |
| TAMARU Akari | 32-32 | YUUKI Kousei |
| YUUKI Kousei | 44-20 | SATO Shinobu |
| YUUKI Kousei | 56-08 | TAMARU Akari |
| YUUKI Kousei | 41-23 | NARA Souma |
| OSHIMIZU Takanori | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 54-10 | ONUMA Junya |
| YUUKI Kousei | 53-11 | KAWAMURA Shitoshi |
| OSHIMIZU Takanori | 39-25 | YUUKI Kousei |
| MEISHO Yuta | 39-25 | YUUKI Kousei |
| ITO Kenshun | 35-29 | YUUKI Kousei |
| MATSUYA Atsu | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 40-24 | TOMITA Yo |
| YUUKI Kousei | 51-13 | KADOKURA Taya |
| YUUKI Kousei | 32-32 | KOMAGATA Masayuki |
2023-10-22: 49_All_Japan_Tohoku_prelim(Japan)
2023-08-27: 120_Sendai_open(Japan)
2023-08-20: 217_Nagareyama_open(Japan)
2023-07-09: 119_Sendai_open(Japan)
| YUUKI Kousei | 48-16 | ECHIZEN Rintaro |
| YUUKI Kousei | 51-13 | HORIUCHI Keiko |
| YUUKI Kousei | 40-24 | TAMARU Akari |
| YUUKI Kousei | 38-26 | SATO Hisakazu |
| NARA Souma | 33-31 | YUUKI Kousei |
| ISHII Takehiro | 44-20 | YUUKI Kousei |
| TAKUAKI Haruki | 35-29 | YUUKI Kousei |
| SATO Shinobu | 38-26 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | KUZUHARA Makoto |
| YUUKI Kousei | 45-19 | KUBO Taiki |
| YUUKI Kousei | 39-25 | TAMARU Akari |
| OSHIMIZU Takanori | 39-25 | YUUKI Kousei |
| SANO Joichiro | 39-25 | YUUKI Kousei |
| UMEDA Yuwa | 55-09 | YUUKI Kousei |
| YUUKI Kousei | 63-01 | MATSUBARA Yuto |
| TSUCHIGANE Taishi | 35-29 | YUUKI Kousei |
| MIYAMOTO Taketora | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 33-31 | HARA Issei |
| YUUKI Kousei | 46-18 | KAWAMURA Shitoshi |
| YUUKI Kousei | 35-29 | SATO Shinobu |
| OSHIMIZU Takanori | 44-20 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | HASEGAWA Takeshi |
| YUUKI Kousei | 58-06 | TAKUAKI Haruki |
| YUUKI Kousei | 38-26 | KAWAMURA Akio |
2018-06-10: 46_All_Japan_Ibaraki_prelim_1(Japan)
| YUUKI Kousei | 48-16 | KITAMURA Momona |
| NARA Souma | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 38-26 | URA Satoru |
| YUUKI Kousei | 39-25 | KIKUCHI Junichi |
| IZUMI Takashi | 43-21 | YUUKI Kousei |
| ARAKI Yu | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 45-19 | KINOSHITA Tsutomu |
| TAKIZAWA Nobuyuki | 58-06 | YUUKI Kousei |
| YUUKI Kousei | 56-08 | SUZUKI Ryouta |
2017-06-18: 45_All_Japan_Ibaraki_prelim(Japan)
| YUUKI Kousei | 33-31 | TOMI Kazuko |
| YUUKI Kousei | 43-21 | KANEKO Akiyuki |
| YUUKI Kousei | 53-11 | IZUMI Takashi |
| NARA Souma | 34-30 | YUUKI Kousei |
| YUUKI Kousei | 41-23 | ARAI Hiroyuki |
| YUUKI Kousei | 39-25 | OHTAKE Kosuke |
| TAKIZAWA Nobuyuki | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 52-12 | YUUKI Kokujin |
2016-09-19: 55_Mito_Jishi_games(Japan)
2016-09-04: 11_Ouza_sen(Japan)
2016-07-17: 44_All_Japan_open_championship(Japan)
2016-06-12: 44_All_Japan_Ibaraki_prelim(Japan)
2016-05-01: 54_Mito_Jishi_games(Japan)
2016-04-03: 53_Mito_Jishi_games(Japan)
2016-03-19: 37_Meijin_students(Japan)
2016-02-28: 51_Nagoya_new_star_games(Japan)
| YUUKI Kousei | 33-31 | OHMORI Keita |
| YUUKI Kousei | 37-27 | OHTAKE Kosuke |
| MIYAZAKI Yuji | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 49-15 | OHUCHI Tose |
| YUUKI Kousei | 36-28 | KINOSHITA Tsutomu |
| WAKIMOTO Naoyuki | 42-22 | YUUKI Kousei |
| YUUKI Kousei | 35-29 | OSHIMIZU Takanori |
| TAKANASHI Yusuke | 41-23 | YUUKI Kousei |
| MIYAOKA Tamaki | 35-29 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | IWASE Mutsumi |
| YUUKI Kousei | 36-28 | HADA Jun |
| NARUMI Hisatoshi | 41-23 | YUUKI Kousei |
| OHIKE Yoshinori | won against | YUUKI Kousei |
| YUUKI Kousei | won against | IWATA Hiroyuki |
| TAKAHASHI Shiu | won against | YUUKI Kousei |
| NARA Souma | won against | YUUKI Kousei |
| YUUKI Kousei | won against | HAMADA Naoki |
| YUUKI Kousei | won against | MATSUMOTO Hiroshi |
| YUUKI Kousei | 42-22 | AZUMA Yoshiyuki |
| YUUKI Kousei | 61-03 | TOMI Kazuko |
| YUUKI Kousei | 33-31 | WAKIMOTO Naoyuki |
| NARA Souma | 35-29 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | KINOSHITA Tsutomu |
| YUUKI Kousei | 40-24 | ARAI Hiroyuki |
| YUUKI Kousei | 53-11 | IZUMI Takashi |
| TAKIZAWA Nobuyuki | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 56-08 | YUUKI Kokujin |
| YUUKI Kousei | 36-28 | SATO Hisakazu |
| YUUKI Kousei | 48-16 | KASAHARA Kohei |
| YUUKI Kousei | 34-30 | IZUMI Takashi |
| IWAKURA Hiroaki | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 57-07 | MATSUSHITA Junichi |
| YUUKI Kousei | 60-04 | SHIGETOMI Naoki |
| IZUMI Takashi | 39-25 | YUUKI Kousei |
| SATO Koichiro | 50-14 | YUUKI Kousei |
| YUUKI Kousei | 48-16 | OHUCHI Takeshi |
| NARA Souma | won against | YUUKI Kousei |
| YUUKI Kousei | won against | KITANO Takumi |
| KITANO Ochachi | won against | YUUKI Kousei |
| YAMAZAKI Keita | won against | YUUKI Kousei |
| YUUKI Kousei | won against | ONUKI Yutaka |
| IKEDA Ryousuke | won against | YUUKI Kousei |
| YUUKI Kousei | 55-09 | MATSUSHITA Junichi |
| YUUKI Kousei | 35-29 | KAWASHIMA Satoaki |
| TANI Katsuya | 36-28 | YUUKI Kousei |
| YUUKI Kousei | 35-29 | ISEDA Katsuya |
| IZUMI Takashi | 39-25 | YUUKI Kousei |
2015-10-11: 4_team_Shinagawa_open(Japan)
2015-09-06: 10_Ouza_sen(Japan)
2015-02-08: 10_Ibaraki_expert_games(Japan)
| NAKANO Takanao | 36-28 | YUUKI Kousei |
| SOUDA Shun | 38-26 | YUUKI Kousei |
| YUUKI Kousei | 36-28 | NARUMI Hisatoshi |
| TAKASAKI Shohei | 33-31 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | NISHIO Hakudo |
| YAMAMOTO Takashi | 37-27 | YUUKI Kousei |
| MIYAOKA Tamaki | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 45-19 | WATANABE Tomonori |
| YUUKI Kousei | 33-31 | YAMANAKA Mami |
| MITSUYA Nobuaki | 57-07 | YUUKI Kousei |
| IDE Akiko | 38-26 | YUUKI Kousei |
| NAGASAKI Hidekazu | 42-22 | YUUKI Kousei |
| YUUKI Kousei | 43-21 | HAMA Masayuki |
| YUUKI Kousei | 46-18 | TOMI Kazuko |
| IZUMI Takashi | 46-18 | YUUKI Kousei |
| WATANABE Tomonori | 33-31 | YUUKI Kousei |
| AKITA Takuma | 35-29 | YUUKI Kousei |
| ARAI Hiroyuki | 40-24 | YUUKI Kousei |
2014-09-07: 9_Ouza_sen(Japan)
2014-02-11: 9_Ibaraki_expert_games(Japan)
| SAITO Aya | 33-31 | YUUKI Kousei |
| NAKAMURA Keiko | 50-14 | YUUKI Kousei |
| NAGAO Hiroto | 35-29 | YUUKI Kousei |
| KITAJIMA Hideki | 34-30 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | KIKUCHI Takafumi |
| YUUKI Kousei | 34-30 | OBARA Hiroto |
| IZUMI Takashi | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 48-16 | YUUKI Kokujin |
| KINOSHITA Takao | 47-17 | YUUKI Kousei |
| YUUKI Kousei | 36-28 | KINOSHITA Tsutomu |
| YUUKI Kousei | 56-08 | YUUKI Kokujin |
| IZUMI Takashi | 50-14 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | OHTAKE Kosuke |
2013-12-23: 5_Mito_dragon_games(Japan)
2013-11-23: 30_Mito_Jishi_games(Japan)
2013-09-15: 148_Nagareyama_open(Japan)
2013-09-01: 8_Ouza_sen(Japan)
2013-08-10: 147_Nagareyama_open(Japan)
2013-05-12: 8_Tsukuba_open(Japan)
2013-02-03: 7_secondary_open(Japan)
| YUUKI Kousei | 51-13 | DEMACHI Koichiro |
| ASAHINA Satoshi | 40-24 | YUUKI Kousei |
| NAGAO Hiroto | 43-21 | YUUKI Kousei |
| IZUMI Takashi | 33-31 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | WATANABE Katsuhiko |
| YUUKI Kousei | 58-06 | SAITO Satiko |
| YUUKI Kousei | 32-32 | OSHIMIZU Takanori |
| YUUKI Kousei | 32-32 | IZUMI Takashi |
| HAMA Kouta | 36-28 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | OSHIMA Shounara |
| YUUKI Kousei | 36-28 | KATORI Michihiro |
| YUUKI Kousei | 40-24 | WATANABE Keiichi |
| MURAKAMI Takeshi | 48-16 | YUUKI Kousei |
| TAYAMA Tsubasa | 51-13 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | FUNATSU Asuka |
| YUUKI Kousei | 51-13 | TANEDA Kazuki |
| KAMIKURA Daisuke | 41-23 | YUUKI Kousei |
| ITO Junya | 43-21 | YUUKI Kousei |
| TSUKAMOTO Kazuma | 38-26 | YUUKI Kousei |
| FUNATSU Asuka | 36-28 | YUUKI Kousei |
| YUUKI Kousei | 39-25 | NAGAO Kazuki |
| MATSUMOTO Juna | 38-26 | YUUKI Kousei |
| DEMACHI Koichiro | 49-15 | YUUKI Kousei |
| YUUKI Kousei | 33-31 | KITANO Takumi |
| YUUKI Kousei | 35-29 | KOBAYASHI Manabu |
| FUNATSU Asuka | 50-14 | YUUKI Kousei |
| MABUCHI Yuta | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | TANAKA Shuntaro |
| YUUKI Kousei | 39-25 | IZUMI Takashi |
| YUUKI Kousei | 34-30 | ISEDA Katsuya |
| YUUKI Kousei | 35-29 | HISHIYAMA Yuichi |
| NAGAO Hiroto | 50-14 | YUUKI Kousei |
| MABUCHI Yuta | 34-30 | YUUKI Kousei |
| KAMIKURA Daisuke | 37-27 | YUUKI Kousei |
| IZUMI Takashi | 41-23 | YUUKI Kousei |
| TAKAHASHI Hisashi | 50-14 | YUUKI Kousei |
| NAKAMURA Keiko | 45-19 | YUUKI Kousei |
| NAGAO Hiroto | 46-18 | YUUKI Kousei |
| TAKAHASHI Hisashi | 40-24 | YUUKI Kousei |
2012-12-08: 79_Chiyarenshi_open(Japan)
2012-11-25: 12_Saitama_open(Japan)
2012-11-18: 143_Nagareyama_open(Japan)
2012-10-08: 142_Nagareyama_open(Japan)
2012-09-23: 73_Mito_meeting(Japan)
2012-09-16: 6_attached_secant_open(Japan)
2012-07-28: 16_period_Mito_Jishi_games(Japan)
2012-07-14: 82_Shinagawa_open(Japan)
2012-06-23: 9_attached_Chiyarenshi_open(Japan)
2012-05-04: 13_period_Mito_Jishi_games(Japan)
2012-04-14: 75_Chiyarenshi_open(Japan)
2012-03-20: 2_attached_rank_open(Japan)
2012-02-11: 74_Chiyarenshi(Japan)
| YUUKI Kousei | 39-25 | TOKI Hidenobu |
| NISHIYAMA Yuki | 38-26 | YUUKI Kousei |
| TSUCHIYA Shotaro | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | WATANABE Keiichi |
| YUUKI Kousei | 33-31 | TANEDA Kazuki |
| TAKAHASHI Hisashi | 35-29 | YUUKI Kousei |
| OHUCHI Yasuhiro | 44-20 | YUUKI Kousei |
| MIYAKOSHI Orita | 59-05 | YUUKI Kousei |
| YUUKI Kousei | 40-24 | MISAWA Mie |
| TSUCHIYA Shotaro | 45-19 | YUUKI Kousei |
| KOBAYASHI Mai | 43-21 | YUUKI Kousei |
| TAYAMA Tsubasa | 46-18 | YUUKI Kousei |
| TAKAHASHI Hisashi | 39-25 | YUUKI Kousei |
| OKUDA Tsuyoshi | 44-20 | YUUKI Kousei |
| KATORI Michihiro | 51-13 | YUUKI Kousei |
| YUUKI Kousei | 50-14 | EBIHARA Yusuke |
| HISHIYAMA Yuichi | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 49-15 | WATANABE Hokuto |
| YUUKI Kousei | 57-07 | MATSUDO Kiyohiko |
| YUUKI Kousei | 40-24 | NAGAO Hiroto |
| SUEKUNI Makoto | 54-10 | YUUKI Kousei |
| NAGAMATSU Ryota | 41-23 | YUUKI Kousei |
| YUUKI Kousei | 36-28 | ICHIHARA Yuji |
| KURIHARA Tomoyuki | 49-15 | YUUKI Kousei |
| IZUMI Takashi | 33-31 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | YUUKI Kokujin |
| TSUCHIYA Ryosuke | 36-28 | YUUKI Kousei |
| IZUMI Takashi | 49-15 | YUUKI Kousei |
| YUUKI Kokujin | 35-29 | YUUKI Kousei |
| TSUCHIYA Ryosuke | 41-23 | YUUKI Kousei |
| YUUKI Kousei | 41-23 | EBIHARA Yusuke |
| IZUMI Takashi | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 40-24 | EBIHARA Yusuke |
| KATORI Michihiro | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | WATANABE Keiichi |
| OHTAKE Kosuke | 48-16 | YUUKI Kousei |
| YUUKI Kousei | 51-13 | OKAZAKI Natsumi |
| YUUKI Kousei | 43-21 | YUUKI Kokujin |
| IZUMI Takashi | 49-15 | YUUKI Kousei |
| WATANABE Keiichi | 48-16 | YUUKI Kousei |
| YUUKI Kousei | 36-28 | TANEDA Yuri |
| ISHIKAWA Hiroyuki | 39-25 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | KIKUCHI Aoi |
| YUUKI Kousei | 37-27 | YUTANI Sho |
| YUUKI Kousei | 34-30 | KAWACHI Yasuki |
| YUUKI Kousei | 42-22 | MOGI Yoshiki |
| YUUKI Kousei | 40-24 | SHIMIZU Shota |
| YUUKI Kousei | 36-28 | MATSUMOTO Takaki |
| SHIMAZU Tatsuya | 35-29 | YUUKI Kousei |
| YUUKI Kousei | 46-18 | KIKUCHI Takafumi |
| YUUKI Kokujin | 34-30 | YUUKI Kousei |
| YUUKI Kousei | 41-23 | HANEO Junichi |
| KATO Tomihiro | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 45-19 | IZUMI Takashi |
| YUUKI Kousei | 37-27 | YAMAMOTO Kunihiro |
| ARAI Hiroyuki | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 47-17 | MATSUMOTO Makoto |
| KUDOU Keita | 35-29 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | YUUKI Kokujin |
| NAGAO Kazuki | won against | YUUKI Kousei |
| YUUKI Kousei | 38-26 | TANEDA Kenji |
| HAMADA Atsushi | 40-24 | YUUKI Kousei |
| YUUKI Kousei | 52-12 | YUUKI Kokujin |
| TAKANASHI Yusuke | 43-21 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | AKAIKE Hide |
| ITO Junya | 56-08 | YUUKI Kousei |
| KATORI Michihiro | 38-26 | YUUKI Kousei |
| YUUKI Kousei | 43-21 | TAKANO Yuji |
| YUUKI Kousei | 39-25 | TANEDA Kazuki |
| YUUKI Kousei | 35-29 | DEMACHI Koichiro |
| HAMADA Atsushi | 34-30 | YUUKI Kousei |
| YUUKI Kousei | 40-23 | YUUKI Kokujin |
| YUUKI Kousei | 45-18 | SHINCHO Mayuko |
| YUUKI Kousei | 36-28 | EBISAWA Gori |
2011-12-23: 1_attached_rank_open(Japan)
2011-11-12: 7_period_Mito_jishi_games(Japan)
2011-09-18: 65_Mito_meeting(Japan)
2011-07-10: 4_attached_Chiyarenshi_open(Japan)
| KATO Tomihiro | 44-20 | YUUKI Kousei |
| YUUKI Kousei | 58-06 | AKAIKE Norimitsu |
| IZUMI Takashi | 50-14 | YUUKI Kousei |
| YUUKI Kokujin | 37-27 | YUUKI Kousei |
| YUUKI Kousei | 41-23 | AKAIKE Hide |
| AKAIKE Hide | 47-17 | YUUKI Kousei |
| YUUKI Kousei | 53-11 | YUUKI Kokujin |
| IZUMI Takashi | 47-17 | YUUKI Kousei |
| YUUKI Kousei | 34-30 | KATO Tomihiro |
| OKUDA Tsuyoshi | 49-15 | YUUKI Kousei |
| YUUKI Kousei | 58-06 | AYO Yasuo |
| YAMAMOTO Kunihiro | 43-21 | YUUKI Kousei |
| KUDOU Hiroshi | 46-18 | YUUKI Kousei |
| NAKAI Terawaki | 46-18 | YUUKI Kousei |
| IZUMI Takashi | 47-17 | YUUKI Kousei |
| SATO Takuma | 50-14 | YUUKI Kousei |
| YUUKI Kousei | 44-20 | NAKAI Terawaki |
| KURAHASHI Yukiko | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 42-22 | SAITO Tsubasa |
| YUUKI Kousei | 54-10 | HIRANUMA Ayama |
| SAKAMOTO Yutsuka | 56-08 | YUUKI Kousei |
| EBIHARA Yusuke | 45-19 | YUUKI Kousei |
| YUUKI Kousei | 47-17 | HIRANAMU Nobuko |