Go Player Ratings

JAAbout ratings

Cho U

Cho U (張栩) has a rating of 2080, ranked 15 of 452 in professional play. Their highest rating so far is 2244 (August 4, 2008).

Cho U9 dan張栩Nihon Ki-in Tokyo
Rating2080
Rank15
1-year change↓52
Peak rating2244
Last 10893-481(2 by default, 1 lost by default)
2026 record
14-6
Record since 1927
893-481
Win rate
.650

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

Professional ratingsFind a player

Rating history — professional

31 gamesHigh 2145Low 2030
109 gamesHigh 2145Low 1951
190 gamesHigh 2201Low 1951
962 gamesHigh 2244Low 1924

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
September 14, 2026Tanaka YukiJudan Final　as White↓26
September 7, 2026Shigekawa AkashiGosei Preliminary A　as White↑2
September 3, 2026Yokotsuka RikiHoninbo　Colors unknown↑14
August 27, 2026Yamashita KeigoKisei League A　as Black↑14
August 13, 2026Cho RiyuJudan Final Preliminary Round 1　Colors unknown↑10
August 10, 2026Okuda AyaHoninbo　Colors unknown↑3
August 6, 2026Ko IsoMeijin　Colors unknown↓18
July 30, 2026Xiao YuyangJudan　Colors unknown↑11
July 16, 2026Sakai YukiKisei League A　as Black↓15
July 12, 2026Ueno RisaNHK Cup Round 1　as Black↑6
July 9, 2026Uchida ShuheiTengen　Colors unknown↑8
June 22, 2026Hashimoto YujiroJudan Preliminary A　as White↑2
June 15, 2026Kono RinKisei League A　as White↑19
June 4, 2026Mitsunaga JunzoHoninbo　Colors unknown↑1
May 25, 2026Hirose YuichiKisei League A　as Black↑18
April 6, 2026Otake YuKisei League A　as Black↓14
March 26, 2026Sada AtsushiKisei League A　as White↓20
March 19, 2026Miura TaroOza Final Preliminary Final　as White↓17
February 23, 2026Otake YuOza Final Preliminary　as White↑20
February 5, 2026Ida AtsushiKisei League A　as White↑20

Head-to-head

Up to 10 opponents, most-played first. Records are from Cho U'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
Iyama Yuta38-46.45221-1915-25
Yamashita Keigo45-34.57025-1418-20
Takao Shinji36-35.50719-2017-15
Yoda Norimoto28-18.60916-312-13
Hane Naoki28-17.6228-618-11
Kono Rin24-19.55812-119-8
Cho Chikun27-8.77115-710-1
Yuki Satoshi25-9.73510-412-3
O Meien19-9.67913-16-8
Kobayashi Satoru17-8.6806-49-4
Yamada Kimio18-6.7509-48-2
Mizokami Tomochika17-6.73912-03-6
O Rissei16-6.7278-28-4
Ko Iso16-5.7626-29-2
Murakawa Daisuke9-11.4505-64-4
Cho Sonjin15-5.7507-26-3
So Yokoku11-8.5794-46-2
Mimura Tomoyasu13-5.7224-27-2
Sakai Hideyuki10-7.5883-56-1
Ichiriki Ryo2-15.1180-82-6
Yu Zhengqi6-10.3754-42-6
Ryu Shikun12-4.7505-26-2
Kato Masao9-6.6005-33-2
Imamura Toshiya12-2.8575-14-1
Kyo Kagen3-11.2142-81-2
Shibano Toramaru4-10.2862-42-5
Yamashiro Hiroshi9-3.7502-06-3
Kim Sujun9-3.7505-23-1
Ida Atsushi7-4.6361-26-1
Hikosaka Naoto7-4.6362-23-2
Seto Taiki7-4.6362-14-3
Yokotsuka Riki8-2.8000-22-0
Akiyama Jiro8-1.8895-12-0
Shida Tatsuya4-5.4444-30-2
Fukuoka Kotaro2-7.2220-31-4
Awaji Shuzo8-1.8892-03-1
Kobayashi Koichi5-4.5562-13-1
Otake Hideo5-4.5560-14-2
Motoki Katsuya3-5.3752-21-3
Anzai Nobuaki6-2.7502-12-1
Michael Redmond6-2.7502-12-1
Nakano Yasuhiro7-01.0001-02-0
Cho Riyu5-2.7144-00-1
Rin Kanketsu7-01.0005-02-0
Otake Yu3-4.4291-32-0
Komatsu Hideki6-1.8575-01-1
Han Zenki6-1.8574-11-0
Suzuki Shinji5-2.7143-22-0
Ogata Masaki4-2.6670-12-1
Onishi Ryuhei2-4.3331-21-1
Honda Kunihisa6-01.0002-03-0
Shuto Shun3-3.5000-21-1
Miyazawa Goro6-01.0004-01-0
Kataoka Satoshi6-01.0002-04-0
Hon Akiyoshi3-2.6001-02-2
Uchida Shuhei4-1.8002-00-1
Obuchi Kotaro3-2.6001-10-1
Yokota Shigeaki4-1.8002-02-1
Morita Michihiro3-2.6001-10-0
Fujita Akihiko2-3.4000-12-1
Hirata Tomoya3-2.6002-11-1

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
202614-6.700
202527-12.692
202420-16.556
202327-22.551
202227-10.730
202120-14.588
202025-22.532
201925-17.595
201830-18.625
201733-16.673
201629-18.617
201522-17.564
201425-16.610
201327-24.529
201230-24.556
201132-18.640
201035-17.673
200937-21.638
200858-18.763
200755-22.714
200649-21.700
200548-22.686
200443-24.642
200347-18.723
200252-13.800
200116-18.471
200021-9.700
199914-5.737
19981-1.500
19971-1.500
19963-1.750
Total893-481.650

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