Go Player Ratings

JAAbout ratings

Cho Riyu

Cho Riyu (張豊猷) has a rating of 1877, ranked 50 of 452 in professional play. Their highest rating so far is 1953 (October 16, 2025).

Cho Riyu9 dan張豊猷Nihon Ki-in Tokyo
Rating1877
Rank50
1-year change↓63
Peak rating1953
Last 10359-281
2026 record
10-6
Record since 1927
359-281
Win rate
.561

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

Professional ratingsFind a player

Rating history — professional

29 gamesHigh 1953Low 1822
83 gamesHigh 1953Low 1768
148 gamesHigh 1953Low 1768
509 gamesHigh 1953Low 1614

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 3, 2026Kobayashi KoichiOza　Colors unknown↓26
August 16, 2026Motoki KatsuyaNHK Cup Main Tournament Round 2　Colors unknown↓5
August 13, 2026Cho UJudan Final Preliminary Round 1　Colors unknown↓9
August 6, 2026Nakamura ShinyaMeijin　Colors unknown↑11
July 27, 2026Mitsunaga JunzoSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑3
July 23, 2026Hirose YuichiJudan　Colors unknown↑24
July 5, 2026Nishi TakenobuNHK Cup Round 1　as White↑16
June 29, 2026Koyama KuyaMeijin　Colors unknown↑23
June 22, 2026Tsuruyama AtsushiJudan Preliminary A　as White↑18
June 8, 2026Jo BunenHoninbo　Colors unknown↓24
June 1, 2026Nakaonoda TomomiGosei　Colors unknown↓24
April 27, 2026Tanaka YukiGosei　Colors unknown↑17
April 20, 2026Fujii KokiKisei First Tournament Preliminary Semifinal　Colors unknown↓14
March 26, 2026Rafif Shidqi FitrahKisei First Tournament Preliminary Quarterfinal　Colors unknown↑5
March 19, 2026Izumitani HideoGosei　Colors unknown↑5
March 5, 2026Ohashi HirofumiKisei First Tournament Preliminary Round 2　Colors unknown↑12
December 18, 2025Shuto ShunTengen Preliminary A Final　as Black↓20
November 24, 2025Ueno AsamiTengen Preliminary A　as Black↑20
November 17, 2025Tanaka KoyuKisei League C Round 5　as Black↓13
November 13, 2025Kuwabara ItsukiMeijin Final Preliminary Final　as Black↓15

Head-to-head

Up to 10 opponents, most-played first. Records are from Cho Riyu'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
Kobayashi Satoru3-8.2732-30-4
Mizokami Tomochika3-7.3000-40-1
Kono Rin3-7.3003-10-4
Shuto Shun6-3.6670-11-1
Cho Chikun7-2.7786-21-0
Shida Tatsuya4-4.5002-11-2
Mimura Tomoyasu5-3.6251-11-0
Tsuruyama Atsushi3-5.3751-21-2
O Meien3-5.3753-20-3
Matsumoto Takehisa5-3.6252-00-1
Kato Atsushi5-3.6252-21-0
Ryu Shikun0-8.0000-30-2
Hane Naoki4-3.5712-02-3
Takao Shinji1-6.1430-21-3
Ko Iso5-2.7141-10-0
Sun Zhe2-5.2861-01-0
Otake Hideo4-3.5711-02-2
Cho U2-5.2861-00-4
Cho Sonjin2-5.2860-22-1
Kim Sujun3-4.4291-11-1
Anzai Nobuaki4-2.6670-10-1
Yoda Norimoto2-4.3331-20-1
So Yokoku1-5.1671-00-3
Morita Michihiro4-2.6671-00-1
Kobayashi Koichi3-3.5002-10-0
Kanazawa Hideo2-4.3330-00-1
Nakaonoda Tomomi4-2.6670-11-0
Seto Taiki3-3.5001-12-1
Koike Yoshihiro0-5.0000-00-1
Sakai Hideyuki2-3.4002-20-1
Murakawa Daisuke4-1.8001-12-0
Suzuki Yoshimichi5-01.0000-01-0
Miyazawa Goro3-2.6000-00-0

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
202610-6.625
202522-13.629
202410-14.417
202316-18.471
202216-9.640
202118-11.621
202023-13.639
201927-16.628
201815-16.484
201716-13.552
201618-16.529
201525-14.641
20146-10.375
201310-9.526
201217-9.654
20118-10.444
20103-8.273
20095-11.313
20081-5.167
20075-5.500
200610-7.588
200520-13.606
200420-10.667
200320-12.625
20029-9.500
20012-1.667
20005-2.714
19991-01.000
19981-1.500
Total359-281.561

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