Go Player Ratings

JAAbout ratings

Mimura Tomoyasu

Mimura Tomoyasu (三村智保) has a rating of 1851, ranked 58 of 452 in professional play. Their highest rating so far is 1987 (November 3, 2019).

Mimura Tomoyasu9 dan三村智保Nihon Ki-in Tokyo
Rating1851
Rank58
1-year change↑41
Peak rating1987
Last 10535-402(1 lost by default)
2026 record
14-7
Record since 1927
535-402
Win rate
.571

The rating is calculated from published game results. It does not include any adjustment for playing Black.

Professional ratingsFind a player

Rating history — professional

27 gamesHigh 1864Low 1779
70 gamesHigh 1913Low 1773
138 gamesHigh 1952Low 1773
564 gamesHigh 1987Low 1739

The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 17, 2026Araki IsseiSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑3
August 17, 2026Katsura AtsushiSGW Cup Chuyo Preliminary Round 1　Colors unknown↑4
July 16, 2026Toyoda HirohitoTengen　Colors unknown↑10
July 13, 2026Yokotsuka RikiJudan Preliminary A Final　as White↓9
July 6, 2026I RyoHoninbo　Colors unknown↓10
June 29, 2026Kono RinMeijin　Colors unknown↓7
June 4, 2026Kim SujunJudan　Colors unknown↑13
May 21, 2026Okada ShinichiroHoninbo　Colors unknown↑4
May 14, 2026Kato AtsushiGosei　Colors unknown↓20
May 7, 2026Rin ShienJudan　Colors unknown↑13
April 23, 2026O MeienMeijin　Colors unknown↑15
April 16, 2026Sotoyanagi SebunGosei　Colors unknown↑15
April 9, 2026Tsurumaru KeiichiHoninbo　Colors unknown↑2
April 2, 2026Oki KeijiJudan　Colors unknown↑3
March 23, 2026Shimosaka MioriGosei　Colors unknown↑4
March 9, 2026Onishi RyuheiOza Final Preliminary Final　as White↓5
February 26, 2026Tajiri YutoJudan　Colors unknown↑12
February 16, 2026Terayama ReiMeijin Preliminary B　as White↑21
February 2, 2026Ko IunJudan Preliminary C　as Black↑6
January 22, 2026Ozeki MinoruKisei First Tournament Round 1　as White↓28

Head-to-head

Up to 10 opponents, most-played first. Records are from Mimura Tomoyasu's point of view; jigo and no-result games are not counted as wins or losses. Only games from 1927 onward are included.
OpponentTotalAs BlackAs White
Yoda Norimoto9-11.4503-36-7
Cho U5-13.2782-72-4
Cho Chikun5-12.2943-51-4
O Meien6-10.3752-33-5
Morita Michihiro12-4.7504-23-2
Komatsu Hideki7-9.4382-31-3
Cho Sonjin8-7.5333-45-1
Akiyama Jiro8-6.5712-11-3
O Rissei7-7.5003-22-3
Yamada Kimio4-10.2862-30-7
Ishida Yoshio9-4.6923-23-1
Ryu Shikun6-7.4622-33-4
Takemiya Masaki7-5.5832-42-0
Kobayashi Satoru6-6.5001-43-2
Matsumoto Takehisa10-2.8331-03-1
Kobayashi Koichi6-6.5001-23-3
Takao Shinji5-6.4552-22-3
Otake Hideo4-7.3641-31-3
Yamashita Keigo4-7.3643-21-5
Kim Sujun5-6.4551-00-2
Rin Shien8-2.8000-03-0
Kono Rin2-8.2001-41-2
Kataoka Satoshi7-3.7003-21-1
Yuki Satoshi1-9.1001-20-6
Hane Naoki3-6.3332-21-4
Ko Iso1-8.1110-10-4
Yo Kagen7-2.7783-01-2
Kato Atsushi7-2.7783-01-1
Anzai Nobuaki3-5.3750-10-1
Oba Junya5-3.6250-12-1
Cho Riyu3-5.3750-11-1
Mizokami Tomochika3-5.3751-10-0
Kato Masao3-4.4292-00-4
Yamashiro Hiroshi4-3.5712-11-2
Rin Kaiho2-5.2861-41-1
Miyazawa Goro5-2.7141-11-1
Iyama Yuta1-6.1431-20-4
Nakaonoda Tomomi5-2.7143-10-1
Imamura Toshiya2-4.3330-31-0
Terayama Rei1-5.1670-31-2
Murakawa Daisuke3-3.5002-10-1
U Boi5-1.8331-12-0
Oya Koichi5-1.8332-10-0
Mitani Tetsuya4-2.6670-01-0
Hikosaka Naoto3-3.5003-10-2
Michael Redmond3-3.5002-11-1
Nakano Hironari3-2.6001-12-1
Mochizuki Kenichi2-3.4000-01-0
Moriyama Naoki4-1.8002-01-1
Motoki Katsuya2-3.4000-10-1
Kanazawa Makoto2-3.4000-01-0
Tsuruyama Atsushi4-1.8001-02-0
Yu Zhengqi2-3.4001-00-2
Honda Kunihisa4-1.8003-01-1
Aoki Shinichi3-2.6000-11-1
So Yokoku5-01.0001-01-0
Yamada Takuji4-1.8000-03-0
Xie Yimin3-2.6001-01-0
Sakai Hideyuki3-2.6002-01-1
Sakai Maki5-01.0002-01-0
Kyo Kagen0-5.0000-00-4
Sun Zhe2-3.4000-10-0
Lee Ishu3-2.6000-00-0
Han Zenki2-3.4001-10-0
Nakamura Shinya0-5.0000-20-1
Takagi Shoichi5-01.0000-01-0
Kiyonari Tetsuya2-3.4000-21-0

Record by year

Counted by calendar year, January to December (default wins and losses are included; jigo and no-result games are not). Only games from 1927 onward are counted, so these totals do not match the career records published by the two Ki-in.

YearRecordWin rate
202614-7.667
202512-8.600
20247-12.368
202321-11.656
202222-14.611
202116-13.552
202020-14.588
201923-11.676
201824-15.615
201723-14.622
201626-15.634
201514-15.483
201417-10.630
20136-8.429
201213-13.500
201118-10.643
20106-6.500
20098-10.444
200811-8.579
20079-14.391
200619-20.487
200525-21.543
200424-20.545
200335-15.700
200226-11.703
20016-3.667
20003-1.750
19992-12.143
19982-3.400
19973-4.429
19968-9.471
199512-3.800
199412-9.571
199313-9.591
19927-7.500
19919-11.450
19903-8.273
19895-5.500
19886-2.750
19875-1.833
Total535-402.571

Calculated from games played between 1927 and 2026 (as of September 17, 2026).