Go Player Ratings

JAAbout ratings

Sasaki Tsuyoshi

Sasaki Tsuyoshi (佐々木毅) has a rating of 1423, ranked 331 of 452 in professional play. Their highest rating so far is 1630 (June 7, 2012).

Sasaki Tsuyoshi7 dan佐々木毅Nihon Ki-in Kansai HQ
Rating1423
Rank331
1-year change↓25
Peak rating1630
Last 10163-186
2026 record
4-6
Record since 1927
163-186
Win rate
.467

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

Professional ratingsFind a player

Rating history — professional

11 gamesHigh 1442Low 1398
48 gamesHigh 1521Low 1398
83 gamesHigh 1559Low 1398
267 gamesHigh 1630Low 1398

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 24, 2026Kurotaki MasakiSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑22
August 24, 2026Shigeno YukiSGW Cup Chuyo Preliminary Round 1　Colors unknown↑3
June 15, 2026Kunimatsu SoOza　Colors unknown↓7
May 11, 2026Yanaka KatsunoriHoninbo　Colors unknown↓12
April 27, 2026Tanaka NobuyukiGosei　Colors unknown↓5
March 26, 2026Sekiyama HonokaGosei　Colors unknown↑14
March 12, 2026Tsukada ChiharuJudan　Colors unknown↓17
February 16, 2026Sakamoto YasuoTengen　Colors unknown↓18
February 5, 2026Goto ShungoJudan　Colors unknown↑22
January 22, 2026Shintani YosukeKisei First Tournament Preliminary Round 1　Colors unknown↓14
November 13, 2025Takabayashi MasahiroMeijin　Colors unknown↓14
August 21, 2025Takemiya YokoSGW Cup Chuyo Preliminary Round 2　as White↓12
August 21, 2025Iwamaru TairaSGW Cup Chuyo Preliminary Round 1　as Black↑24
August 4, 2025Goto ShungoRyusei　Colors unknown↓11
July 31, 2025Ishida AtsushiOza　Colors unknown↓9
June 16, 2025Sakamoto YasuoOza　Colors unknown↑15
May 29, 2025Kitano RyoTengen　Colors unknown↓15
May 22, 2025Oda TeppeiOza　Colors unknown↑8
May 1, 2025Muramoto WataruHoninbo　Colors unknown↓3
April 14, 2025Komatsu DaikiGosei　Colors unknown↓9

Head-to-head

Up to 10 opponents, most-played first. Records are from Sasaki Tsuyoshi'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
Komatsu Daiki1-8.1111-00-0
Tsukuda Akiko6-2.7500-00-0
Enda Hideki2-6.2500-00-0
Yanagawa Hiromasa3-5.3750-00-0
Sasaka Shiro2-5.2860-00-0
Yamada Shiho6-1.8570-00-0
Ohashi Naruya0-7.0000-00-1
Araki Issei6-1.8570-00-0
Iwamaru Taira3-4.4291-00-0
Yanaka Katsunori0-7.0000-00-0
Ishii Kunio2-5.2860-00-0
Sakaguchi Ryuzo5-2.7140-00-0
Ishida Atsushi3-3.5000-00-0
Takabayashi Masahiro4-2.6670-00-0
Kirimoto Kazuo6-01.0000-00-0
Sakamoto Yasuo2-4.3330-00-0
Goto Shungo2-4.3330-00-0
Oda Teppei4-2.6670-00-0
Takei Takashi1-4.2000-00-0
Kikkawa Hajime1-4.2000-10-0
Kori Toshio3-2.6000-00-0
Tanaka Chieko5-01.0000-00-0
Yamamoto Kentaro3-2.6000-00-0
Torii Yuta2-3.4000-00-0

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
20264-6.400
20257-11.389
20249-10.474
20236-8.429
20227-10.412
202113-11.542
20205-8.385
20195-10.333
20189-12.429
20177-14.333
201610-8.556
20158-8.500
20143-4.429
20131-7.125
201213-7.650
20117-7.500
20101-2.333
20090-1.000
20080-1.000
20071-1.500
20064-3.571
20058-9.471
200413-11.542
200313-11.542
20029-6.600
Total163-186.467

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