Ratings
OTANI Koichiro (Japan)
Japanese name(s): 大谷梗一郎25 tournaments
165 results
Player ID: 13868
165 results
Player ID: 13868
2020-02-09: Tohoku_expert_games(Japan)
| OTANI Koichiro | 53-11 | KAWAMURA Akio |
| SATO Hisakazu | 54-10 | OTANI Koichiro |
| OTANI Koichiro | 52-12 | SATO Shinobu |
| WADA Chiaki | 53-11 | OTANI Koichiro |
| OTANI Koichiro | 54-10 | MIURA Wataru |
| WADA Masaki | 36-28 | OTANI Koichiro |
2019-12-22: 117_Sendai_open(Japan)
2019-11-17: 116_sendai_open(Japan)
2019-10-27: 48_All_Japan_Tohoku_prelim(Japan)
2019-06-16: 112_Sendai_open(Japan)
2019-05-26: 111_Sendai_open(Japan)
2019-05-04: 10_Mito_open(Japan)
2019-05-03: 1_Tsuchiura_battle(Japan)
2019-05-01: 2_Tohoku_special_2(Japan)
2019-04-30: 2_Tohoku_special_1(Japan)
2019-04-21: 110_Sendai_open(Japan)
| SATO Hisakazu | 47-17 | OTANI Koichiro |
| KAWAMURA Shitoshi | 44-20 | OTANI Koichiro |
| KAWAMURA Akio | 45-19 | OTANI Koichiro |
| OTANI Koichiro | 46-18 | SUZUKI Rintaro |
| OTANI Koichiro | 51-13 | MIURA Wataru |
| OTANI Koichiro | 40-24 | IZUMI Shinya |
| OSHIMIZU Takanori | 50-14 | OTANI Koichiro |
| KUDOU Keita | 44-20 | OTANI Koichiro |
| KANO Chihiro | 49-15 | OTANI Koichiro |
| OTANI Koichiro | 64-00 | SAKUSAI Miki |
| OTANI Koichiro | 33-31 | WADA Chiaki |
| OTANI Koichiro | 56-08 | SATO Shinobu |
| WADA Masaki | 51-13 | OTANI Koichiro |
| KAWAMURA Akio | 46-18 | OTANI Koichiro |
| MIURA Toshie | 43-21 | OTANI Koichiro |
| SUZUKI Souta | 51-13 | OTANI Koichiro |
| OTANI Koichiro | 42-22 | HORIUCHI Keiko |
| OTANI Koichiro | 57-07 | ITO Masaaki |
| WADA Chiaki | 55-09 | OTANI Koichiro |
| SATO Hisakazu | 55-09 | OTANI Koichiro |
| OTANI Koichiro | 64-00 | KUDUO Michio |
| OTANI Koichiro | 49-15 | SATO Shinobu |
| YOKOSAWA Haruko | 54-10 | OTANI Koichiro |
| HAYASHIZAKI Hiroyuki | 42-22 | OTANI Koichiro |
| OTANI Koichiro | 53-11 | SUZUKI Souta |
| OTANI Koichiro | 40-24 | KAWAMURA Shitoshi |
| SATO Hisakazu | 44-20 | OTANI Koichiro |
| OTANI Koichiro | 43-21 | IZUMI Shinya |
| ISHII Takehiro | 46-18 | OTANI Koichiro |
| MIYAMOTO Taketora | 36-28 | OTANI Koichiro |
| SUZUKI Fujio | 37-27 | OTANI Koichiro |
| OTANI Koichiro | 59-05 | TOMI Kazuko |
| KOBAYASHI Manabu | 44-20 | OTANI Koichiro |
| SAWADA Takehiko | 56-08 | OTANI Koichiro |
| OTANI Koichiro | 34-30 | IZUMI Shinya |
| OTANI Koichiro | 37-27 | ARAKI Yu |
| YOKOSAWA Haruko | 33-31 | OTANI Koichiro |
| KAWAI Shinobu | 34-30 | OTANI Koichiro |
| OTANI Koichiro | 52-12 | TORIU Yuuki |
| OTANI Koichiro | 44-20 | KOBAYASHI Makoto |
| KIKUCHI Takafumi | 60-04 | OTANI Koichiro |
| OTANI Koichiro | 35-29 | WATABE Naoto |
| KANEKO Hikaru | 41-23 | OTANI Koichiro |
| USHIRO Hideaki | 44-20 | OTANI Koichiro |
| OTANI Koichiro | 53-11 | FUJII Renya |
| OTANI Koichiro | 37-27 | KAWAI Shinobu |
| WADA Chiaki | 38-26 | OTANI Koichiro |
| OTANI Koichiro | 39-25 | SUZUKI Kenji |
| WADA Masaki | 39-25 | OTANI Koichiro |
| FUJII Renya | 51-13 | OTANI Koichiro |
| TAKAHASHI Akinari | 34-30 | OTANI Koichiro |
| OTANI Koichiro | 34-30 | IZUMI Shinya |
| OTANI Koichiro | 46-18 | TOMI Kazuko |
| OTANI Koichiro | 33-31 | KITAMURA Momona |
| TSUCHIGANE Taishi | 52-12 | OTANI Koichiro |
| OTANI Koichiro | 50-14 | TORIU Yuuki |
| KATOKO Isamu | 43-21 | OTANI Koichiro |
| OTANI Koichiro | 51-13 | MIYAMOTO Taketora |
| WADA Chiaki | 45-19 | OTANI Koichiro |
| OTANI Koichiro | 40-24 | YADOMI Kousuke |
| OTANI Koichiro | 60-04 | HACHIHATA Nobuyasu |
| NANASE Yuuma | 35-29 | OTANI Koichiro |
| KITAJIMA Hideki | 43-21 | OTANI Koichiro |
| OTANI Koichiro | 38-26 | KOBAYASHI Manabu |
| OTANI Koichiro | 46-18 | WATABE Naoto |
| OTANI Koichiro | 49-15 | YOKOSAWA Haruko |
| OTANI Koichiro | 34-30 | WADA Chiaki |
| OKUDA Tsuyoshi | 38-26 | OTANI Koichiro |
| IZUMI Takashi | 55-09 | OTANI Koichiro |
| KUSHI Ryota | 51-13 | OTANI Koichiro |
| OSHIMIZU Takanori | 52-12 | OTANI Koichiro |
| YOKOSAWA Haruko | 36-28 | OTANI Koichiro |
| OTANI Koichiro | 34-30 | YAMAMOTO Kunihiro |
| OTANI Koichiro | 52-12 | SATO Shinobu |
| SATO Hisakazu | 55-09 | OTANI Koichiro |
| KAWAMURA Shitoshi | 50-14 | OTANI Koichiro |
| OTANI Koichiro | 46-18 | SATO Masato |
| KUSHI Ryota | 34-30 | OTANI Koichiro |
| OTANI Koichiro | 64-00 | IKU Hasu |
2018-12-16: 107_Sendai_open(Japan)
2018-11-18: 106_Sendai_open(Japan)
2018-10-28: 47_All_Japan_Tohoku_prelim(Japan)
2018-09-23: 105_Sendai_open(Japan)
2018-07-29: 103_Sendai_open(Japan)
2018-06-17: 46_All_Japan_Tohoku_prelim(Japan)
2018-04-22: 101_Sendai_open(Japan)
2018-03-25: 100_Sendai_open(Japan)
2018-02-25: 39_Tohoku_expert_games(Japan)
2018-01-21: 99_Sendai_open(Japan)
| OTANI Koichiro | 44-20 | ONUMA Junya |
| SATO Hisakazu | 47-17 | OTANI Koichiro |
| OTANI Koichiro | 61-03 | KENDA Yuwasa |
| WADA Chiaki | 40-24 | OTANI Koichiro |
| KUSHI Ryota | 41-23 | OTANI Koichiro |
| KUDOU Aki | 41-23 | OTANI Koichiro |
| KANO Chihiro | 40-24 | OTANI Koichiro |
| OTANI Koichiro | 41-23 | SATO Shinobu |
| OTANI Koichiro | 45-19 | WATABE Kei |
| OTANI Koichiro | 46-18 | IZUMI Shinya |
| SATO Hisakazu | 35-29 | OTANI Koichiro |
| YANO Yasushi | 35-29 | OTANI Koichiro |
| ONUMA Junya | 33-31 | OTANI Koichiro |
| KANO Chihiro | 34-30 | OTANI Koichiro |
| OTANI Koichiro | 34-30 | KAWAMURA Akio |
| OTANI Koichiro | 36-28 | YOSHIDA Taisaku |
| YOKOSAWA Haruko | 38-26 | OTANI Koichiro |
| MATSUNAGA Syou | 39-25 | OTANI Koichiro |
| SATO Hisakazu | 40-24 | OTANI Koichiro |
| KANO Chihiro | 53-11 | OTANI Koichiro |
| OTANI Koichiro | 51-13 | IZUMI Shinya |
| OTANI Koichiro | 50-14 | KURIHARA Motoki |
| WADA Chiaki | 39-25 | OTANI Koichiro |
| OTANI Koichiro | 41-23 | TAKAHASHI Kenji |
| SATO Hisakazu | 54-10 | OTANI Koichiro |
| WADA Chiaki | 56-08 | OTANI Koichiro |
| OTANI Koichiro | 34-30 | YOKOSAWA Haruko |
| MURAKAMI Takeshi | 62-02 | OTANI Koichiro |
| OTANI Koichiro | 49-15 | MIURA Wataru |
| MIURA Toshie | 52-12 | OTANI Koichiro |
| IZUMI Shinya | 33-31 | OTANI Koichiro |
| OTANI Koichiro | 45-19 | MIURA Wataru |
| HORIUCHI Keiko | 41-23 | OTANI Koichiro |
| YOSHIDA Taisaku | 50-14 | OTANI Koichiro |
| IZUMI Shinya | 54-10 | OTANI Koichiro |
| KANO Chihiro | 37-27 | OTANI Koichiro |
| OTANI Koichiro | 46-18 | MIURA Wataru |
| OSHIMIZU Takanori | 64-00 | OTANI Koichiro |
| SATO Hisakazu | 58-06 | OTANI Koichiro |
| OTANI Koichiro | 37-27 | MIURA Wataru |
| WADA Masaki | 50-14 | OTANI Koichiro |
| ONUMA Junya | 44-20 | OTANI Koichiro |
| OTANI Koichiro | 35-29 | WADA Chiaki |
| OTANI Koichiro | 43-21 | MIURA Wataru |
| SAITO Kenta | 55-09 | OTANI Koichiro |
| OTANI Koichiro | 40-24 | ONISHI Yu |
| TAKAHASHI Eigo | 37-27 | OTANI Koichiro |
| OTANI Koichiro | 46-18 | YASUJIMA Yuji |
| OKIZAKI Kyo | 49-15 | OTANI Koichiro |
| KANO Chihiro | 44-20 | OTANI Koichiro |
| OTANI Koichiro | 60-04 | KAWAMURA Shitoshi |
| TAKAHASHI Hisashi | 35-29 | OTANI Koichiro |
| NAKANO Jo | 49-15 | OTANI Koichiro |
| OTANI Koichiro | 46-18 | ITSUFUJI Kanshi |
| WADA Masaki | 52-12 | OTANI Koichiro |
| SUGAWARA Misa | 43-21 | OTANI Koichiro |
| MIURA Wataru | 38-26 | OTANI Koichiro |
2017-12-23: 98_Sendai_open(Japan)
2017-11-26: Tohoku_open_2017(Japan)
2017-11-25: Tohoku_open_2017_students(Japan)
| IZUMI Shinya | 38-26 | OTANI Koichiro |
| KOSHITAKA Tomoya | 43-21 | OTANI Koichiro |
| WATANABE Yasuo | 34-30 | OTANI Koichiro |
| OTANI Koichiro | 47-17 | NAKANUMA Togiyo |
| OTANI Koichiro | 36-28 | KENDA Yuwasa |
| YOKOSAWA Haruko | 52-12 | OTANI Koichiro |
| OTANI Koichiro | 44-20 | MIURA Wataru |
| YOKOUCHI Yuji | 54-10 | OTANI Koichiro |
| YOSHIDA Taisaku | 43-21 | OTANI Koichiro |
| OTANI Koichiro | 35-29 | TAKAMIYA Emi |
| WADA Chiaki | 55-09 | OTANI Koichiro |
| OTANI Koichiro | 50-14 | MIURA Satoyuki |
| OTANI Koichiro | 52-12 | NAGI Akio |
| KAWAMURA Akio | 40-24 | OTANI Koichiro |
| OTANI Koichiro | 50-14 | HYAKUTA Ryuuhei |
| WADA Chiaki | 53-11 | OTANI Koichiro |
| OTANI Koichiro | 38-26 | KIKUCHI Hisei |
2016-11-19: Tohoku_open_2016_students(Japan)
| SHIRACHI Seima | 53-11 | OTANI Koichiro |
| UEDA Kumiro | 64-00 | OTANI Koichiro |
| TSUKAMOTO Kouyou | 43-21 | OTANI Koichiro |
| UEDA Neiro | 40-24 | OTANI Koichiro |
| ITABASHI Tomohito | 40-24 | OTANI Koichiro |
| NISHIHARA Yuika | 46-18 | OTANI Koichiro |
