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International  general information | player biography | Ōya kōichi | detailed statistics  
Over the years
Period Games Win Loss Jigo None Unkn Scoring
2020-2021 8 3 5 0 0 0 37.50%
2019-2020 1 0 1 0 0 0 0.00%
2014-2019 18 7 11 0 0 0 38.89%
2009-2014 34 13 21 0 0 0 38.24%
2004-2009 34 12 22 0 0 0 35.29%
1999-2004 34 13 21 0 0 0 38.24%
1994-1999 50 23 27 0 0 0 46.00%
1989-1994 74 37 37 0 0 0 50.00%
1984-1989 60 35 25 0 0 0 58.33%
1981-1984 9 7 2 0 0 0 77.78%

Over the color
Color Games Win Loss Jigo None Unkn Scoring
Black 160 80 80 0 0 0 50.00%
White 162 70 92 0 0 0 43.21%
Overall 322 150 172 0 0 0 46.58%

Over the komi
Komi Games Win Loss Jigo None Unkn Scoring
Giving  6.50 47 18 29 0 0 0 38.30%
Giving  5.50 106 55 51 0 0 0 51.89%
No komi 20 15 5 0 0 0 75.00%
Receiving  5.50 100 47 53 0 0 0 47.00%
Receiving  6.50 49 15 34 0 0 0 30.61%

Over handicap
Handicap Games Win Loss Jigo None Unkn Scoring
Even game 322 150 172 0 0 0 46.58%

Over result margins

Margin Games Fraction
-R 108 33.54%
-10 5 1.55%
-5 12 3.73%
-4 6 1.86%
-2 14 4.35%
-1 10 3.11%
-0 17 5.28%
+0 17 5.28%
+1 7 2.17%
+2 12 3.73%
+3 5 1.55%
+4 6 1.86%
+5 7 2.17%
+10 1 0.31%
+15 1 0.31%
+R 94 29.19%

Over events
Event Games Win Loss Jigo None Unkn Scoring
? 88 40 48 0 0 0 45.45%
Agon Cup 2 0 2 0 0 0 0.00%
China-Japan supergo 17 12 5 0 0 0 70.59%
Daiwa Cup 7 5 2 0 0 0 71.43%
Fujitsu Cup 4 0 4 0 0 0 0.00%
Gosei tournament 15 6 9 0 0 0 40.00%
Honinbo title 2 1 1 0 0 0 50.00%
Honinbo tournament 23 9 14 0 0 0 39.13%
Japanese NEC Cup 1 0 1 0 0 0 0.00%
Judan tournament 16 8 8 0 0 0 50.00%
Kisei title 1 0 1 0 0 0 0.00%
Kisei tournament 5 1 4 0 0 0 20.00%
LG Cup 5 0 5 0 0 0 0.00%
Meijin tournament 2 2 0 0 0 0 100.00%
NHK Cup 16 10 6 0 0 0 62.50%
Oteai 13 10 3 0 0 0 76.92%
Oza title 2 0 2 0 0 0 0.00%
Oza tournament 25 13 12 0 0 0 52.00%
Phoenix Cup 1 0 1 0 0 0 0.00%
Ryu-Sei Cup 45 21 24 0 0 0 46.67%
Shin-Ei 1 1 0 0 0 0 100.00%
Shinjin-O 8 3 5 0 0 0 37.50%
Shun'ei 1 1 0 0 0 0 100.00%
Tengen title 2 0 2 0 0 0 0.00%
Tengen tournament 20 7 13 0 0 0 35.00%

Over players
Player Games Win Loss Jigo None Unkn Scoring
? 7 3 4 0 0 0 42.86%
Abe Yoshiteru 2 2 0 0 0 0 100.00%
Andō Akio 2 2 0 0 0 0 100.00%
Anzai Nobuaki 1 1 0 0 0 0 100.00%
Aoki Shinichi 2 1 1 0 0 0 50.00%
Aragaki Shun 1 1 0 0 0 0 100.00%
Aragaki Takeshi 2 2 0 0 0 0 100.00%
Arimura Hiroshi 1 1 0 0 0 0 100.00%
Awaji Shūzō 1 0 1 0 0 0 0.00%
Chin Kaei 1 0 1 0 0 0 0.00%
Chō Chikun 5 1 4 0 0 0 20.00%
Chō Sonjin 9 2 7 0 0 0 22.22%
Chō U 4 0 4 0 0 0 0.00%
Fujisawa Kazunari 1 0 1 0 0 0 0.00%
Fujisawa Shūkō 4 4 0 0 0 0 100.00%
Furuya Yutaka 1 1 0 0 0 0 100.00%
Gotō Shungo 1 1 0 0 0 0 100.00%
Hagiya Kazuhiro 1 1 0 0 0 0 100.00%
Hanawa Yasutoki 1 1 0 0 0 0 100.00%
Hane Naoki 5 3 2 0 0 0 60.00%
Hashimoto Yūjirō 1 1 0 0 0 0 100.00%
Hata Hidefumi 1 1 0 0 0 0 100.00%
Hidaka Toshiyuki 1 0 1 0 0 0 0.00%
Hikosaka Naoto 4 2 2 0 0 0 50.00%
Hirano Norikazu 1 1 0 0 0 0 100.00%
Hiroe Hiroyuki 3 1 2 0 0 0 33.33%
Hisajima Kunio 2 0 2 0 0 0 0.00%
Honda Kunihisa 1 1 0 0 0 0 100.00%
Ichiriki Ryo 2 0 2 0 0 0 0.00%
Ikezaki Tokinori 1 1 0 0 0 0 100.00%
Imamura Toshiya 1 0 1 0 0 0 0.00%
Imamura Yoshiaki 4 3 1 0 0 0 75.00%
Ishida Yoshio 8 4 4 0 0 0 50.00%
Ishikura Noboru 5 3 2 0 0 0 60.00%
Iwata Hajime 1 0 1 0 0 0 0.00%
Iwata Tatsuaki 1 0 1 0 0 0 0.00%
Kamimura Haruo 1 0 1 0 0 0 0.00%
Kanashima Tadashi 2 2 0 0 0 0 100.00%
Kanda Ei 1 1 0 0 0 0 100.00%
Kanō Yoshinori 1 0 1 0 0 0 0.00%
Kataoka Satoshi 9 5 4 0 0 0 55.56%
Katō Atsushi 1 0 1 0 0 0 0.00%
Katō Masao 7 2 5 0 0 0 28.57%
Kawai Tetsuyuki 1 1 0 0 0 0 100.00%
Kawamura Kazunori 1 1 0 0 0 0 100.00%
Kenmochi Jō 1 0 1 0 0 0 0.00%
Kimura Yoshio 1 1 0 0 0 0 100.00%
Kishimoto Kazuo 1 1 0 0 0 0 100.00%
Ko Iso 2 0 2 0 0 0 0.00%
Kobayashi Chizu 1 1 0 0 0 0 100.00%
Kobayashi Koichi 1 0 1 0 0 0 0.00%
Kobayashi Satoru 12 5 7 0 0 0 41.67%
Kojima Takaho 2 2 0 0 0 0 100.00%
Komatsu Fujiō 1 0 1 0 0 0 0.00%
Komatsu Hideki 2 1 1 0 0 0 50.00%
Konagai Masaru 1 0 1 0 0 0 0.00%
Kono Rin 3 1 2 0 0 0 33.33%
Kurahashi Masayuki 2 1 1 0 0 0 50.00%
Kurotaki Masanori 1 1 0 0 0 0 100.00%
Kyo Kagen 2 1 1 0 0 0 50.00%
Kō Mōsei 2 2 0 0 0 0 100.00%
Lee ChangHo 3 0 3 0 0 0 0.00%
Lee SeDol 2 0 2 0 0 0 0.00%
Liang Weitang 2 2 0 0 0 0 100.00%
Liao Guiyong 2 1 1 0 0 0 50.00%
Michael Redmond 3 3 0 0 0 0 100.00%
Mimura Tomoyasu 4 1 3 0 0 0 25.00%
Mitani Tetsuya 1 0 1 0 0 0 0.00%
Mizokami Tomochika 2 2 0 0 0 0 100.00%
Mochizuki Kenichi 1 0 1 0 0 0 0.00%
Morita Michihiro 1 1 0 0 0 0 100.00%
Moriyama Naoki 2 0 2 0 0 0 0.00%
Motoki Katsuya 1 0 1 0 0 0 0.00%
Muramatsu Ryūichi 1 1 0 0 0 0 100.00%
Nakamura Hidehito 4 3 1 0 0 0 75.00%
Nakano Hironari 3 2 1 0 0 0 66.67%
Nakaonoda Tomomi 2 1 1 0 0 0 50.00%
Nakazawa Ayako 2 1 1 0 0 0 50.00%
Nishimura Keiji 1 1 0 0 0 0 100.00%
Oba Junya 2 0 2 0 0 0 0.00%
Ogata Masaki 4 1 3 0 0 0 25.00%
Ohashi Hirofumi 1 0 1 0 0 0 0.00%
Oyama Kunio 2 2 0 0 0 0 100.00%
Rin Kaihō 4 2 2 0 0 0 50.00%
Ryū Shikun 8 4 4 0 0 0 50.00%
Sakai Hideyuki 1 0 1 0 0 0 0.00%
Sakai Takeshi 2 0 2 0 0 0 0.00%
Sakata Eio 1 0 1 0 0 0 0.00%
Seki Kotaro 1 0 1 0 0 0 0.00%
Shimoji Genshō 1 0 1 0 0 0 0.00%
Shiraishi Yutaka 4 3 1 0 0 0 75.00%
Shuto Shun 1 1 0 0 0 0 100.00%
So Yōkoku 1 0 1 0 0 0 0.00%
Sonoda Yasutaka 2 2 0 0 0 0 100.00%
Sonoda Yuichi 1 1 0 0 0 0 100.00%
Sō Kōfuku 1 0 1 0 0 0 0.00%
Takao Shinji 5 0 5 0 0 0 0.00%
Takemiya Masaki 5 4 1 0 0 0 80.00%
Takiguchi Masaki 1 1 0 0 0 0 100.00%
Tei Meiki 1 0 1 0 0 0 0.00%
Tei Meikō 3 2 1 0 0 0 66.67%
Tokimoto Hajime 1 0 1 0 0 0 0.00%
Tono Hiroaki 1 0 1 0 0 0 0.00%
Tsuruyama Atsushi 1 1 0 0 0 0 100.00%
Ushinohama Satsuo 1 0 1 0 0 0 0.00%
Wang Jianhong 2 2 0 0 0 0 100.00%
Yamada Kimio 8 5 3 0 0 0 62.50%
Yamada Wakio 2 1 1 0 0 0 50.00%
Yamamoto Kentaro 1 0 1 0 0 0 0.00%
Yamashita Keigo 1 1 0 0 0 0 100.00%
Yang Hui 3 3 0 0 0 0 100.00%
Yasuda Yasutoshi 1 1 0 0 0 0 100.00%
Yoda Norimoto 12 5 7 0 0 0 41.67%
Yokota Shigeaki 3 1 2 0 0 0 33.33%
Yu Bin 4 0 4 0 0 0 0.00%
Yukawa Mitsuhisa 2 0 2 0 0 0 0.00%
Yuki Satoshi 10 2 8 0 0 0 20.00%
Yō Kagen 3 0 3 0 0 0 0.00%
Zhang Wendong 4 4 0 0 0 0 100.00%
Ō Meien 5 1 4 0 0 0 20.00%
Ō Rissei 8 0 8 0 0 0 0.00%
Ōbuchi Morito 1 0 1 0 0 0 0.00%
Ōgaki Yūsaku 1 1 0 0 0 0 100.00%
Ōhira Shūzō 3 1 2 0 0 0 33.33%
Ōmori Yasushi 1 1 0 0 0 0 100.00%
Ōtake Hideo 6 4 2 0 0 0 66.67%

Over the ranks
Rank Games Win Loss Jigo None Unkn Scoring
? 3 1 2 0 0 0 33.33%
1p 1 1 0 0 0 0 100.00%
2p 3 2 1 0 0 0 66.67%
3p 3 2 1 0 0 0 66.67%
4p 7 4 3 0 0 0 57.14%
5p 20 10 10 0 0 0 50.00%
6p 55 32 23 0 0 0 58.18%
7p 72 35 37 0 0 0 48.61%
8p 54 23 31 0 0 0 42.59%
9p 104 40 64 0 0 0 38.46%

Over the length
Moves Games Win Loss Jigo None Unkn Scoring
0- 50 3 0 3 0 0 0 0.00%
50-100 12 6 6 0 0 0 50.00%
100-150 55 26 29 0 0 0 47.27%
150-200 103 43 60 0 0 0 41.75%
200-250 70 37 33 0 0 0 52.86%
250-300 63 32 31 0 0 0 50.79%
300-350 15 5 10 0 0 0 33.33%
350-400 1 1 0 0 0 0 100.00%

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