Go Player Ratings

JAAbout ratings

Ogaki Yusaku

Ogaki Yusaku (大垣雄作) has a rating of 1792, ranked 87 of 452 in professional play. Their highest rating so far is 1863 (October 29, 2023).

Ogaki Yusaku9 dan大垣雄作Nihon Ki-in Tokyo
Rating1792
Rank87
1-year change↓13
Peak rating1863
Last 10328-258
2026 record
13-6
Record since 1927
328-258
Win rate
.560

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

Professional ratingsFind a player

Rating history — professional

26 gamesHigh 1821Low 1746
84 gamesHigh 1863Low 1746
147 gamesHigh 1863Low 1714
422 gamesHigh 1863Low 1640

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, 2026Kobayashi SatoruOza Preliminary B　as White↑12
August 27, 2026Onishi KenyaGosei　Colors unknown↑20
August 13, 2026Jo BunenOza　Colors unknown↑13
August 3, 2026Xie YiminSGW Cup Chuyo Preliminary Semifinal　Colors unknown↓17
July 9, 2026Ohashi HirofumiOza　Colors unknown↑16
June 29, 2026Takemiya YokoHoninbo　Colors unknown↓25
May 25, 2026Okada YumikoOza　Colors unknown↑2
May 14, 2026Iguchi ToyohideMeijin　Colors unknown↓18
May 7, 2026Tsuruyama AtsushiJudan　Colors unknown↓14
April 23, 2026Yoshida TomaHoninbo　Colors unknown↑8
April 13, 2026Tsuji HanaJudan　Colors unknown↑10
April 6, 2026Kondo ToshikiTengen　Colors unknown↓19
March 26, 2026Kato YukiMeijin　Colors unknown↑3
March 19, 2026Kondo ToshikiKisei First Tournament Preliminary Quarterfinal　Colors unknown↓20
March 12, 2026Kondo ToshikiJudan　Colors unknown↑13
February 26, 2026Kojima TakahoTengen　Colors unknown↑1
February 12, 2026Obata MinoriKisei First Tournament Round 2　as Black↑4
January 29, 2026Shiraishi YuichiJudan　Colors unknown↑6
January 22, 2026Kono YukioKisei First Tournament Preliminary Round 1　Colors unknown±0
December 18, 2025Takeshita NanaMeijin　Colors unknown↑2

Head-to-head

Up to 10 opponents, most-played first. Records are from Ogaki Yusaku'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
Kim Sujun4-8.3330-20-2
Kobayashi Satoru4-6.4000-13-1
Rin Shien7-1.8751-02-0
Kobayashi Koichi3-5.3751-21-2
Ryu Shikun2-6.2500-41-2
Takao Shinji0-7.0000-30-3
So Yokoku3-4.4291-00-1
Rin Kaiho4-3.5711-01-2
Mitani Tetsuya4-3.5711-01-1
Cho Sonjin3-4.4290-11-2
Yoda Norimoto1-5.1670-31-1
Yamada Takuji2-4.3331-10-0
Yo Chito0-6.0000-00-1
Otake Hideo4-2.6671-12-0
Nakaonoda Tomomi3-3.5002-01-1
Michael Redmond3-3.5000-00-2
Iguchi Toyohide3-2.6001-00-0
Tsuruyama Atsushi3-2.6001-00-1
O Rissei1-4.2001-40-0
Ko Iso1-4.2000-00-0
Yo Kagen4-1.8001-00-1
Mizokami Tomochika0-5.0000-20-2
Goto Shungo2-3.4001-11-2
Rin Kanketsu1-4.2000-21-0
Koyama Kuya0-5.0000-10-0
Cho Chikun1-4.2000-20-1

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
202613-6.684
202520-10.667
202414-12.538
202321-11.656
202219-14.576
202112-10.545
202012-8.600
201919-14.576
201811-12.478
201724-12.667
20168-9.471
201520-9.690
20141-5.167
20138-7.533
20129-9.500
20118-10.444
20103-5.375
20094-8.333
20084-4.500
20072-3.400
200610-6.625
200511-15.423
200416-9.640
200323-10.697
200211-8.579
20010-4.000
20003-4.429
19993-6.333
19984-1.800
19970-2.000
19961-2.333
19951-2.333
19944-2.667
19934-4.500
19924-2.667
19910-1.000
19900-1.000
19890-1.000
19881-01.000
Total328-258.560

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