Go Player Ratings

JAAbout ratings

Sonoda Yuichi

Sonoda Yuichi (苑田勇一) has a rating of 1654, ranked 162 of 452 in professional play. Their highest rating so far is 1820 (May 17, 2007).

Sonoda Yuichi9 dan苑田勇一Kansai Ki-in
Rating1654
Rank162
1-year change↑35
Peak rating1820
Last 10262-263
2026 record
6-3
Record since 1927
262-263
Win rate
.499

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

Professional ratingsFind a player

Rating history — professional

10 gamesHigh 1672Low 1635
20 gamesHigh 1708Low 1611
41 gamesHigh 1738Low 1611
164 gamesHigh 1820Low 1602

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 2, 2026Tamura ChiakiTengen Preliminary A　as Black↑5
August 26, 2026Takayamabe FumiOza Preliminary B　as White↑8
August 19, 2026Morino SetsuoTengen Preliminary B　as White↑6
March 18, 2026Yokota ShigeakiKansai Ki-in First Place Tournament Round 2　as Black↓15
February 25, 2026Shintani YosukeJudan Preliminary B　as Black↑10
February 4, 2026Hashimoto KanKisei First Tournament Preliminary Round 2　Colors unknown↓21
January 28, 2026Fujii ShuyaOza Preliminary A Final　as Black↓10
January 22, 2026Ushinohama SatsuoKisei First Tournament Preliminary Round 1　Colors unknown↑8
January 14, 2026Hon AkiyoshiOza Preliminary A　as White↑27
November 12, 2025Okawa TakuyaKansai Ki-in First Place Tournament Round 1　as White↑18
July 30, 2025Sada AtsushiHoninbo Preliminary B　as White↓3
May 14, 2025Son HideyoJudan Preliminary A　as Black↑12
February 19, 2025Francis MeyerMeijin Preliminary C　as Black↓24
January 29, 2025Chin KaeiKisei First Tournament Preliminary Round 2　Colors unknown↓17
November 27, 2024Yukawa MitsuhisaKansai Ki-in First Place Tournament Round 1　as Black↓16
September 11, 2024Taniguchi ToruHoninbo Preliminary A　as White↓11
August 7, 2024Sakakibara MasateruGosei Preliminary A　as Black↑5
February 8, 2024Imamura YoshiakiKisei First Tournament Preliminary Round 1　Colors unknown↓14
January 25, 2024Hane YasumasaTeikei Cup Legend Preliminary　as Black↓20
January 15, 2024Kono RinGosei Round 1　as Black↓4

Head-to-head

Up to 10 opponents, most-played first. Records are from Sonoda Yuichi'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
Cho Chikun7-17.2923-64-10
Kudo Norio5-7.4171-14-6
Yamashiro Hiroshi3-9.2501-32-5
Rin Kaiho4-8.3332-31-5
Kobayashi Koichi6-6.5004-32-3
Yoda Norimoto3-8.2732-41-4
Takemiya Masaki5-5.5003-22-3
Kobayashi Satoru6-4.6001-23-2
Fujisawa Shuko5-4.5564-21-2
Ishida Yoshio4-5.4442-32-2
O Meien3-5.3750-43-1
Hikosaka Naoto4-4.5003-11-3
Hane Yasumasa5-2.7142-13-0
Kataoka Satoshi3-4.4292-31-1
Yuki Satoshi1-6.1431-40-1
Nakano Yasuhiro3-3.5001-01-0
Kato Masao1-5.1670-51-0
Imamura Toshiya1-5.1671-20-3
Shiraishi Yutaka5-1.8332-03-1
Honda Kunihisa2-4.3332-20-2
Yokota Shigeaki4-2.6673-11-1
Ushinohama Satsuo3-3.5001-21-1
Otake Hideo3-3.5001-12-2
Hashimoto Shoji2-4.3330-12-3
Kiyonari Tetsuya3-3.5000-23-0
Sakata Eio3-2.6003-00-2
O Rissei2-3.4002-20-1
Sakai Hideyuki0-5.0000-10-3
Abe Yoshiteru4-1.8002-02-1
Ishida Akira1-4.2001-00-4
Shimamura Toshihiro2-3.4002-10-2

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
20266-3.667
20252-3.400
20241-5.167
20235-3.625
202210-2.833
20215-3.625
20200-3.000
20191-5.167
20186-6.500
20178-9.471
20164-5.444
20155-5.500
20142-1.667
20133-3.500
20121-3.250
20112-2.500
20101-1.500
20091-4.200
20084-7.364
20075-4.556
20069-6.600
20050-4.000
20046-4.600
20031-4.200
20023-5.375
20015-3.625
20002-7.222
19994-7.364
19987-5.583
19973-5.375
19963-1.750
19956-4.600
19942-3.400
19932-5.286
19925-5.500
19918-7.533
19909-7.563
19892-7.222
198812-12.500
198714-11.560
198615-7.682
19853-4.429
19848-9.471
198321-10.677
19826-11.353
19819-3.750
19802-4.333
19791-7.125
19786-3.667
197710-7.588
19763-6.333
19742-2.500
19721-01.000
19700-1.000
Total262-263.499

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