Ratings
YUUKI Kokujin (Japan)
Japanese name(s): 結城国人69 tournaments
387 results
Player ID: 12340
Rated 499 in Japan and 604 in Asia&Oceania&Africa and 751 in the World
Latest rating: 1759
387 results
Player ID: 12340
Rated 499 in Japan and 604 in Asia&Oceania&Africa and 751 in the World
Latest rating: 1759
2025-09-23: 17_Chiba_open(Japan)
2025-09-15: 21_Saitama_open(Japan)
2025-08-10: 234_Nagareyama_open(Japan)
2025-06-15: Nagareyama-Kawagoe_friendly_match(Japan)
2025-05-03: 232_Nagareyama_open(Japan)
2025-04-13: 231_Nagareyama_open(Japan)
2025-01-12: 229_Nagaretama_open(Japan)
| MATSUMOTO Taiki | 46-18 | YUUKI Kokujin |
| TOMI Kazuko | 32-32 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | SAKURADA Ayata |
| YAMANAKA Masayuki | 57-07 | YUUKI Kokujin |
| HASEGAWA Akira | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 42-22 | TSUTSUMI Ari |
| YUUKI Kokujin | 51-13 | HIRAI Oochi |
| IWAKURA Hiroaki | 47-17 | YUUKI Kokujin |
| UEDA Kazunobu | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 57-07 | TANAKA Yuki |
| SANO Yoko | 44-20 | YUUKI Kokujin |
| KAWABATA Seiji | 49-15 | YUUKI Kokujin |
| MATSUBARA Yuto | 35-29 | YUUKI Kokujin |
| TOKIWA Shuto | 59-05 | YUUKI Kokujin |
| YUUKI Kokujin | 44-20 | FUJIWARA Mana |
| YUUKI Naoto | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | MATSUMOTO Taiki |
| MEISHO Shigeki | 50-14 | YUUKI Kokujin |
| HASEGAWA Akira | 40-24 | YUUKI Kokujin |
| MATSUMOTO Taiki | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 63-01 | ATACHI Yoshio |
| YUUKI Kokujin | 41-23 | MATSUBARA Yuto |
| YUUKI Kokujin | 41-23 | SUGIMOTO Yuki |
| KOBAYASHI Manabu | 42-22 | YUUKI Kokujin |
| KOMATSU Kanaharu | 48-16 | YUUKI Kokujin |
| YUUKI Naoto | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | MATSUMOTO Taiki |
| YUUKI Kokujin | 38-26 | HIRAI Oochi |
| YAMANAKA Masayuki | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 55-09 | SUZUKI Sosei |
| YAMANAKA Masayuki | 47-17 | YUUKI Kokujin |
| TAKEDA Ryoga | 39-25 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | YAMASHITA Kotaro |
| YUUKI Kokujin | 33-31 | NAMAZU Yuki |
| YUUKI Naoto | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | KAWADOKO Satoshi |
| YUUKI Kokujin | 38-26 | ISHIKAWA Akira |
| HASEGAWA Takeshi | 56-08 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | TOMI Kazuko |
| OKUDA Tsuyoshi | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 36-28 | MATSUMOTO Taiki |
| YUUKI Kokujin | 34-30 | YAMANAKA Masayuki |
2024-11-24: 20_Saitama_open(Japan)
2024-11-10: 227_Nagareyama_open(Japan)
2024-10-06: 226_Nagareyama_open(Japan)
2024-08-31: 2_Tsukuba_open(Japan)
2024-08-11: 225_Nagareyama_open(Japan)
2024-06-30: 50_All_Japan_Ibaraki_prelim(Japan)
| AOKI Daichi | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | TSUTSUMI Ari |
| YUUKI Kokujin | 36-28 | YAMANA Takuto |
| HASEGAWA Takeshi | 43-21 | YUUKI Kokujin |
| SAKAI Kosei | 49-15 | YUUKI Kokujin |
| YUUKI Kokujin | 54-10 | MORIWAKI Mizuki |
| YUUKI Kokujin | 48-16 | OKUDA Tsuyoshi |
| TOKIWA Shuto | 53-11 | YUUKI Kokujin |
| KANEKO Hikaru | 36-28 | YUUKI Kokujin |
| OTANI Akimoto | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | TAKAHASHI Akinari |
| YUUKI Kokujin | won against | NISHIBAYASHI Touya |
| SANO Kaoru | 41-23 | YUUKI Kokujin |
| YUUKI Kokujin | 44-20 | KATSUYAMA Yuta |
| YUUKI Kokujin | 40-24 | TAYAMA Tsubasa |
| KOSHINO Kazuhiko | 46-18 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | YUUKI Naoto |
| SATO Minato | 33-31 | YUUKI Kokujin |
| KURACHI Takayuki | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 61-03 | MATSUMOTO Taiki |
| OHMORI Keita | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | OHUCHI Tose |
| NAGATSUKA Ibuki | 53-11 | YUUKI Kokujin |
| YUUKI Kokujin | 37-27 | MEISHO Shigeki |
| YUUKI Kokujin | 36-28 | KOSHINO Kazuhiko |
| YUUKI Kousei | 37-27 | YUUKI Kokujin |
| TAKIGUCHI Masaharu | 45-19 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | OKAMOTO Ayane |
| YUUKI Kokujin | 35-29 | HAYASAKA Toshie |
| TOMI Kazuko | 41-23 | YUUKI Kokujin |
| OHWAKU Takiyoshi | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | KUDOU Keita |
| YUUKI Kokujin | 43-21 | HACHIHATA Nobuyasu |
| OHGA Nao | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 40-24 | SAGA Yoichi |
| ENDO Yoshiki | 53-11 | YUUKI Kokujin |
| YUUKI Kokujin | 55-09 | SUZUKI Souji |
2020-01-13: 16_Tsuchiura_open(Japan)
| TOMI Kazuko | 37-27 | YUUKI Kokujin |
| HORIUCHI Soutarou | 53-11 | YUUKI Kokujin |
| TSUZUME Shota | 35-29 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | TSUZUME Yuuko |
| SUZUKI Ryouta | 35-29 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | SUZUKI Fujio |
2019-07-20: 148_Shinagawa_open(Japan)
| MARUTA Osamu | 37-27 | YUUKI Kokujin |
| KITAMURA Momona | 49-15 | YUUKI Kokujin |
| YUUKI Kokujin | won against | HIRAI Aori |
| YUUKI Kokujin | 47-17 | NISHIKUBO Hiroshi |
| MITANI Koutarou | 41-23 | YUUKI Kokujin |
| YUUKI Kokujin | 36-28 | SHIRAI Yuga |
2018-06-10: 46_All_Japan_Ibaraki_prelim_1(Japan)
2018-05-05: 186_Nagareyama_open(Japan)
| URA Satoru | 61-03 | YUUKI Kokujin |
| YUUKI Kokujin | 37-27 | KITAMURA Momona |
| YUUKI Kokujin | 35-29 | KIKUCHI Takafumi |
| YUUKI Kokujin | 39-25 | OHUCHI Tose |
| IZUMI Takashi | 50-14 | YUUKI Kokujin |
| TAKIZAWA Nobuyuki | 48-16 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | HACHIHATA Nobuyasu |
| NARA Souma | 55-09 | YUUKI Kokujin |
| ABE Yura | 59-05 | YUUKI Kokujin |
| HAYASAKA Toshie | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | NAKAMURA Kazuhiro |
| TANAKA Chikako | 35-29 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | TSUCHIGANE Taishi |
2017-09-23: 58_Nagareyama_B(Japan)
2017-08-13: 16_Tsukuba_challenge(Japan)
2017-07-15: 56_Nagareyama_B(Japan)
2017-06-18: 45_All_Japan_Ibaraki_prelim(Japan)
| YUUKI Kokujin | 38-26 | TAKAHASHI Toshi |
| OKUNO Masakazu | 48-16 | YUUKI Kokujin |
| YUUKI Kokujin | 50-14 | TSUKAMOTO Takashi |
| NAKAYAMA Kyousuke | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 50-14 | KITANO Hiromi |
| NARA Yumiko | 39-25 | YUUKI Kokujin |
| SEKINE Taku | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 48-16 | TSUSAKI Honoka |
| YUUKI Kokujin | 50-14 | TSUKAMOTO Takashi |
| YUUKI Kokujin | 43-21 | MORIKAWA Haruhito |
| YUUKI Kokujin | 40-24 | OHTSUBO Kai |
| NODA Yuna | 40-24 | YUUKI Kokujin |
| SASAKI Yuuhei | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 57-07 | UENO Kazuhiro |
| YUUKI Kokujin | 48-16 | NAKAMURA Kazuhiro |
| TAKADA Chiki | 37-27 | YUUKI Kokujin |
| NARA Souma | 45-19 | YUUKI Kokujin |
| YUUKI Kokujin | 48-16 | AZUMA Yoshiyuki |
| OHTAKE Kosuke | 35-29 | YUUKI Kokujin |
| IZUMI Takashi | 45-19 | YUUKI Kokujin |
| YUUKI Kokujin | 58-06 | KIKUCHI Junichi |
| TAKIZAWA Nobuyuki | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | KITAMURA Momona |
| YUUKI Kousei | 52-12 | YUUKI Kokujin |
2016-09-19: 55_Mito_Jishi_games(Japan)
2016-08-14: 45_Nagareyama_B(Japan)
2016-06-12: 44_All_Japan_Ibaraki_prelim(Japan)
2016-05-01: 54_Mito_Jishi_games(Japan)
2016-04-23: 41_Nagareyama_B(Japan)
2016-04-03: 53_Mito_Jishi_games(Japan)
2016-03-27: 97_Mito_meeting(Japan)
2016-03-26: 111_Shinagawa_open(Japan)
2016-02-28: 51_Nagoya_new_star_games(Japan)
2016-01-24: 39_Nagareyama_B(Japan)
2016-01-10: 50_Nagoya_new_star_games(Japan)
| MIYAZAKI Yuji | 33-31 | YUUKI Kokujin |
| SHIGETOMI Masato | 33-31 | YUUKI Kokujin |
| OHMORI Keita | 54-10 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | SHIGETOMI Naoki |
| OHUCHI Tose | 42-22 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | KIKUCHI Takafumi |
| YAMANAKA Masayuki | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | MORIKAWA Yoshihito |
| YUUKI Kokujin | 56-08 | SAGA Hiroyuki |
| YUUKI Kokujin | 51-13 | FUJIEDA Sae |
| GOH Jun Jie Anthony | 44-20 | YUUKI Kokujin |
| WAKIMOTO Naoyuki | 52-12 | YUUKI Kokujin |
| OHUCHI Takeshi | 37-27 | YUUKI Kokujin |
| TOMI Kazuko | 45-19 | YUUKI Kokujin |
| OHTAKE Kosuke | 50-14 | YUUKI Kokujin |
| YUUKI Kokujin | 42-22 | MATSUSHITA Sakura |
| MATSUYAMA Takashi | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 48-16 | AZUMA Yoshiyuki |
| YUUKI Kousei | 56-08 | YUUKI Kokujin |
| YUUKI Kokujin | 55-09 | MATSUSHITA Sakura |
| IWAKURA Hiroaki | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | OHUCHI Takeshi |
| IZUMI Takashi | 57-07 | YUUKI Kokujin |
| KAJIAWA Mariko | 50-14 | YUUKI Kokujin |
| ISHII Takamasa | 39-25 | YUUKI Kokujin |
| KAJIAWA Shuji | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 53-11 | NAKAJIMA Hajime |
| YUUKI Kokujin | 55-09 | TSUKAMOTO Takashi |
| SHIGETOMI Masato | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | TOMI Kazuko |
| SATO Koichiro | 48-16 | YUUKI Kokujin |
| YUUKI Kokujin | 49-15 | MATSUSHITA Junichi |
| YUUKI Kokujin | 52-12 | MATSUSHITA Sakura |
| YUUKI Kokujin | 51-13 | SHIGETOMI Naoki |
| YUUKI Kokujin | 47-17 | OHTAKE Kosuke |
| SHIGETOMI Masato | 36-28 | YUUKI Kokujin |
| OHUCHI Takeshi | 44-20 | YUUKI Kokujin |
| YUUKI Kokujin | 44-20 | ARAKI Ryo |
| YUUKI Kokujin | 44-20 | KITAMURA Momona |
| YUUKI Kokujin | 48-16 | NAKAMURA Kazuki |
| MURAKAMI Takeshi | 33-31 | YUUKI Kokujin |
| KITANO Takumi | 57-07 | YUUKI Kokujin |
| TAKAMIZAWA Daiki | 46-18 | YUUKI Kokujin |
| YUUKI Kokujin | 51-13 | KITIGAWA Mami |
| ONUKI Yutaka | 41-23 | YUUKI Kokujin |
| IZUMI Takashi | 39-25 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | KITAMURA Momona |
| YUUKI Kokujin | 33-31 | SHIGETOMI Masato |
| MATSUSHITA Junichi | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 48-16 | HAYAKAWA Kei |
| YUUKI Kokujin | 34-30 | KAMATANI Akihiro |
| ISHII Takamasa | 42-22 | YUUKI Kokujin |
| NAKAJIMA Hajime | 44-20 | YUUKI Kokujin |
| YUUKI Kokujin | 46-18 | YAMAGUCHI Tomoki |
| YUUKI Kokujin | 50-14 | OHUCHI Takeshi |
| YUUKI Kokujin | 42-22 | EBIHARA Yusuke |
| YUUKI Kokujin | 40-24 | ARAI Hiroyuki |
| IZUMI Takashi | 43-21 | YUUKI Kokujin |
| NAKAMURA Keiko | 51-13 | YUUKI Kokujin |
2015-11-15: 37_Nagareyama_B(Japan)
2015-09-19: 35_Nagareyama_B(Japan)
2015-07-18: 33_Nagareyama_B(Japan)
2015-02-08: 10_Ibaraki_expert_games(Japan)
2015-01-11: 28_Nagareyama_B(Japan)
| YUUKI Kokujin | 64-00 | UI Naomichi |
| YUUKI Kokujin | 39-25 | EGUTI Kotoha |
| YUUKI Kokujin | 38-26 | ISHII Takamasa |
| YAMAGUCHI Tomoki | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | SUZUKI Yoshiyuki |
| YUUKI Kokujin | 40-24 | EGUTI Kotoha |
| YUUKI Kokujin | 41-23 | NAKAYAMA Kyousuke |
| ISHIKAWA Hikaru | 41-23 | YUUKI Kokujin |
| NAKAJIMA Hajime | 39-25 | YUUKI Kokujin |
| MORI Natsumi | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 55-09 | WATANABE Yuuto |
| YUUKI Kokujin | 57-07 | YAMAGUCHI Hironobu |
| EGUTI Kotoha | 57-07 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | NAKAJIMA Hajime |
| ISHII Takamasa | 48-16 | YUUKI Kokujin |
| ARAI Hiroyuki | 36-28 | YUUKI Kokujin |
| KIKUCHI Takafumi | 44-20 | YUUKI Kokujin |
| HAMA Kouta | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | IMAZU Akira |
| HAMA Masayuki | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | IMAZU Akira |
| YUUKI Kokujin | 39-25 | OCHIAI Naofumi |
| NARITA Shunsuke | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 41-23 | EIJI Takigawa |
| YUUKI Kokujin | 34-30 | OKAMURA Anetsu |
| YUUKI Kokujin | 47-17 | NAKAJIMA Hajime |
2014-02-11: 9_Ibaraki_expert_games(Japan)
2014-01-04: 32_Mito_Jishi_games(Japan)
| YUUKI Kousei | 48-16 | YUUKI Kokujin |
| IZUMI Takashi | 44-20 | YUUKI Kokujin |
| OHTAKE Kosuke | 43-21 | YUUKI Kokujin |
| YUUKI Kousei | 56-08 | YUUKI Kokujin |
| KINOSHITA Tsutomu | 33-31 | YUUKI Kokujin |
| KINOSHITA Takao | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 47-17 | NOBUTA Akira |
| ARAI Hiroyuki | 41-23 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | HAMA Shunsuke |
| SATO Hisakazu | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 53-11 | UMEZU Murata |
2013-11-23: 30_Mito_Jishi_games(Japan)
2013-09-23: 81_Mito_meeting(Japan)
2013-09-15: 148_Nagareyama_open(Japan)
2013-08-10: 147_Nagareyama_open(Japan)
2013-06-01: 80_Mito_meeting_youth(Japan)
2013-05-12: 12_Tsukuba_challenge(Japan)
2013-04-29: 78_Mito_meeting_youth(Japan)
2013-04-06: 78_Mito_meeting(Japan)
2013-02-03: 11_anti_resistance_games(Japan)
2013-01-05: 20_period_Mito_Jishi_games(Japan)
| HAMA Kouta | 33-31 | YUUKI Kokujin |
| YUUKI Kokujin | 44-20 | KAWASAKI Bunji |
| YUUKI Kokujin | 40-24 | HAMA Takako |
| OSHIMIZU Takanori | 57-07 | YUUKI Kokujin |
| HAMA Masayuki | 40-24 | YUUKI Kokujin |
| GOTO Masahiro | 41-23 | YUUKI Kokujin |
| IZUMI Takashi | 35-29 | YUUKI Kokujin |
| TOMI Kazuko | 38-26 | YUUKI Kokujin |
| OHTAKE Kosuke | 43-21 | YUUKI Kokujin |
| YUUKI Kokujin | 49-15 | HAMA Shunsuke |
| YUUKI Kokujin | 34-30 | TOMI Kazuko |
| TAYAMA Tsubasa | 53-11 | YUUKI Kokujin |
| HAIJIMA Mitsuya | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 44-20 | ICHIHARA Yuji |
| NAGAO Hiroto | 53-11 | YUUKI Kokujin |
| YUUKI Kokujin | 36-28 | OSHIMA Shounara |
| YUUKI Kokujin | 36-28 | OCHIAI Naofumi |
| ABE Yura | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | KITANO Takumi |
| KOBAYASHI Manabu | 35-29 | YUUKI Kokujin |
| SANO Joichiro | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 58-06 | ISHIKAWA Rui |
| WATANABE Katsuhiko | 32-32 | YUUKI Kokujin |
| YUUKI Kokujin | 50-14 | HAMA Masayuki |
| HAMA Kouta | 40-24 | YUUKI Kokujin |
| WATANABE Tomonori | 46-18 | YUUKI Kokujin |
| YUUKI Kokujin | 47-17 | HAMA Takako |
| YUUKI Kokujin | 37-27 | SAKURAE Shinichi |
| SHIMAZU Tatsuya | 55-09 | YUUKI Kokujin |
| ICHIGE Hiroyuki | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | SAKURAE Shinichi |
| SHIMAZU Tatsuya | 33-31 | YUUKI Kokujin |
| ICHIGE Hiroyuki | 46-18 | YUUKI Kokujin |
| KINOSHITA Takao | 44-20 | YUUKI Kokujin |
| KATO Tomihiro | 46-18 | YUUKI Kokujin |
| NAGASHIMA Kazuhito | 63-01 | YUUKI Kokujin |
| OHTAKE Kosuke | 42-22 | YUUKI Kokujin |
| KAMIHARA Takashi | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 55-09 | HAMA Takako |
| YUUKI Kokujin | 41-23 | WATANABE Tomonori |
| YUUKI Kokujin | 57-07 | HAMA Shunsuke |
| WATANABE Katsuhiko | 34-30 | YUUKI Kokujin |
| HAMA Kouta | 46-18 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | SHIMIZU Shota |
| IKEUCHI Keitaro | 32-32 | YUUKI Kokujin |
| HAMA Masayuki | 36-28 | YUUKI Kokujin |
| IINUMA Syun | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 52-12 | KANEKAWA Makiko |
| YUUKI Kokujin | 48-16 | IINUMA Syun |
| ARAI Hiroyuki | 49-15 | YUUKI Kokujin |
| NAKAMURA Keiko | 54-10 | YUUKI Kokujin |
| HIGASHI Yoshiyuki | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | TOMI Kazuko |
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: 10_Apec_open(Japan)
2012-08-12: 141_Nagareyama_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)
2012-02-04: 10_period_Mito_jishi_games(Japan)
2012-01-07: 9_period_Mito_jishi_games(Japan)
| YUUKI Kokujin | 41-23 | OKUDE Kengo |
| YUUKI Kokujin | 36-28 | MATSUDO Kiyohiko |
| YUUKI Kokujin | 42-22 | KIKUCHI Takafumi |
| MATSUZAWA Masa | 36-28 | YUUKI Kokujin |
| TAMURA Masanori | 35-29 | YUUKI Kokujin |
| TAYAMA Tsubasa | 38-26 | YUUKI Kokujin |
| TAKIGAWA Mitsuaki | 60-04 | YUUKI Kokujin |
| YUUKI Kokujin | 45-19 | KOBAYASHI Mai |
| YAMAMOTO Kunihiro | 52-12 | YUUKI Kokujin |
| KAWAGUCHI Hayato | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 47-17 | TOMI Kazuko |
| YUUKI Kokujin | 48-16 | WATANABE Hokuto |
| TAKAHASHI Shiu | 38-26 | YUUKI Kokujin |
| KURAHASHI Satoshi | 55-09 | YUUKI Kokujin |
| NARUMI Hisatoshi | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 64-00 | TOMI Kazuko |
| OKUDA Tsuyoshi | 42-22 | YUUKI Kokujin |
| YUUKI Kokujin | 53-11 | KAWACHI Yuki |
| GOTO Masahiro | 59-05 | YUUKI Kokujin |
| TAKAHASHI Shiu | 33-31 | YUUKI Kokujin |
| TANIDA Kunihiko | 52-12 | YUUKI Kokujin |
| ARAI Hiroyuki | 33-31 | YUUKI Kokujin |
| TAKAHASHI Kenji | 41-23 | YUUKI Kokujin |
| TSUCHIYA Ryosuke | 49-15 | YUUKI Kokujin |
| YUUKI Kousei | 34-30 | YUUKI Kokujin |
| IZUMI Takashi | 53-11 | YUUKI Kokujin |
| TSUCHIYA Ryosuke | 47-17 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | YUUKI Kousei |
| IZUMI Takashi | 40-24 | YUUKI Kokujin |
| OKUNO Naokazu | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 51-13 | YOSHIZAWA Tiara |
| YUUKI Kokujin | 34-30 | SHIMIZU Shota |
| TOMI Kazuko | 48-16 | YUUKI Kokujin |
| SUZUKI Keinosuke | 38-26 | YUUKI Kokujin |
| YUUKI Kokujin | 39-25 | YOSHIZAWA Takashi |
| NAKAMURA Keiko | 37-27 | YUUKI Kokujin |
| OHE Yoshimaru | 41-23 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | SHIOYA Hiroyuki |
| TAKAHASHI Shiu | 47-17 | YUUKI Kokujin |
| ISHIKAWA Akira | 56-08 | YUUKI Kokujin |
| YUUKI Kokujin | 48-16 | HIEDA Shigemasa |
| YUUKI Kousei | 43-21 | YUUKI Kokujin |
| WATANABE Keiichi | 58-06 | YUUKI Kokujin |
| YUUKI Kokujin | 43-21 | OKAZAKI Natsumi |
| ISHIKAWA Hiroyuki | 37-27 | YUUKI Kokujin |
| WATANABE Kenji | 37-27 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | TANEDA Kenji |
| HAMADA Atsushi | 36-28 | YUUKI Kokujin |
| YUUKI Kokujin | 38-26 | TANEDA Yuri |
| MATSUMOTO Takaki | 33-31 | YUUKI Kokujin |
| YUUKI Kokujin | 32-32 | SHIMIZU Shota |
| KIKUCHI Takafumi | 45-19 | YUUKI Kokujin |
| NAGAHORI Tomohisa | 44-20 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | YUUKI Kousei |
| YUUKI Kokujin | 33-31 | SHIMAZU Tatsuya |
| ARAI Hiroyuki | 48-16 | YUUKI Kokujin |
| EBIHARA Yusuke | 49-15 | YUUKI Kokujin |
| IZUMI Takashi | 44-20 | YUUKI Kokujin |
| EBIHARA Yusuke | 56-08 | YUUKI Kokujin |
| YUUKI Kokujin | 35-28 | TANEDA Yuri |
| YUUKI Kokujin | 34-30 | TOMONO Aimi |
| YUUKI Kousei | 34-30 | YUUKI Kokujin |
| YUUKI Kokujin | 34-30 | MATSUMOTO Makoto |
| HASEGAWA Shinjo | 37-27 | YUUKI Kokujin |
| SHIRAI Ukyo | 41-23 | YUUKI Kokujin |
| YUUKI Kousei | 52-12 | YUUKI Kokujin |
| OHTAKE Kosuke | 51-13 | YUUKI Kokujin |
| TAKANO Yuji | 34-30 | YUUKI Kokujin |
| EBIHARA Yusuke | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 40-24 | AKAIKE Hide |
| NAGAMATSU Ryota | 57-07 | YUUKI Kokujin |
| DEMACHI Koichiro | 39-25 | YUUKI Kokujin |
| TANEDA Kazuki | 40-24 | YUUKI Kokujin |
| YUUKI Kokujin | 35-29 | SHINCHO Mayuko |
| YUUKI Kousei | 40-23 | YUUKI Kokujin |
| YUUKI Kokujin | 33-31 | EBISAWA Gori |
| YUUKI Kokujin | 33-31 | HAMADA Atsushi |
| OHTAKE Kosuke | 39-25 | YUUKI Kokujin |
| GOTO Masahiro | 56-08 | YUUKI Kokujin |
| KATO Tomihiro | 39-25 | YUUKI Kokujin |
| YUUKI Kokujin | 49-15 | TASAKA Nobuki |
| YUUKI Kokujin | 51-13 | AYO Yasuo |
| YUUKI Kokujin | 34-30 | EBIHARA Yusuke |
| ARAI Hiroyuki | 36-28 | YUUKI Kokujin |
| KATO Tomihiro | 51-13 | YUUKI Kokujin |
| IZUMI Takashi | 38-26 | YUUKI Kokujin |
| NAKAMURA Keiko | 46-18 | YUUKI Kokujin |
| ARAI Hiroyuki | 34-30 | YUUKI Kokujin |
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)
| YUUKI Kokujin | 42-22 | AKAIKE Norimitsu |
| AKAIKE Hide | 36-28 | YUUKI Kokujin |
| KATO Tomihiro | 48-16 | YUUKI Kokujin |
| YUUKI Kokujin | 37-27 | YUUKI Kousei |
| IZUMI Takashi | 54-10 | YUUKI Kokujin |
| YUUKI Kokujin | 54-10 | AKAIKE Norimitsu |
| YUUKI Kousei | 53-11 | YUUKI Kokujin |
| KOBAYASHI Manabu | 51-13 | YUUKI Kokujin |
| YUUKI Kokujin | 51-13 | AYO Yasuo |
| OKUDA Tsuyoshi | 54-10 | YUUKI Kokujin |
| IZUMI Takashi | 48-16 | YUUKI Kokujin |
| YUUKI Kokujin | 46-18 | KUDOU Hiroshi |
| YAMAMOTO Kunihiro | 64-00 | YUUKI Kokujin |
| YUUKI Kokujin | 42-22 | OHTAKE Kosuke |
| WAKIMOTO Naoyuki | 61-03 | YUUKI Kokujin |
| YUUKI Kokujin | 32-32 | NAKAI Terawaki |
| SATO Takuma | 52-12 | YUUKI Kokujin |
| SHIMIZU Shota | 44-20 | YUUKI Kokujin |
| YUUKI Kokujin | 41-23 | HIRANAMU Nobuko |
| YUUKI Kokujin | 32-32 | NAKAI Kota |
| HAYASAKA Toshie | 55-09 | YUUKI Kokujin |
| KURAHASHI Yukiko | 49-15 | YUUKI Kokujin |