Go Player Ratings

JAAbout ratings

Numadate Sakiya

Numadate Sakiya (沼舘沙輝哉) has a rating of 1839, ranked 68 of 452 in professional play. Their highest rating so far is 1956 (February 20, 2023).

Numadate Sakiya7 dan沼舘沙輝哉Nihon Ki-in Tokyo
Rating1839
Rank68
1-year change↑69
Peak rating1956
Last 10240-182
2026 record
10-3
Record since 1927
240-182
Win rate
.569

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

Professional ratingsFind a player

Rating history — professional

24 gamesHigh 1840Low 1756
72 gamesHigh 1892Low 1749
133 gamesHigh 1956Low 1749
418 gamesHigh 1956Low 1480

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 10, 2026Suzuki ShinjiHoninbo Preliminary A　as White↑24
September 3, 2026Chang Ruei JieGosei　Colors unknown↑14
August 6, 2026Nakaonoda TomomiGosei　Colors unknown↑12
August 3, 2026Iguchi ToyohideSGW Cup Chuyo Preliminary Semifinal　Colors unknown↓18
July 30, 2026Fujii KokiHoninbo　Colors unknown↑23
July 13, 2026Han ZenkiTengen　Colors unknown↑18
May 21, 2026Takahashi HideoHoninbo　Colors unknown↑3
April 16, 2026Kato YukiHoninbo　Colors unknown↑3
March 19, 2026Miyazaki RyutaroHoninbo　Colors unknown↑4
March 5, 2026Sotoyanagi SebunKisei First Tournament Preliminary Quarterfinal　Colors unknown↓16
February 5, 2026Hashimoto YujiroKisei First Tournament Preliminary Round 2　Colors unknown↑7
January 29, 2026Aoki KikuyoJudan　Colors unknown↓29
January 15, 2026Koyama RyugoKisei First Tournament Preliminary Round 1　Colors unknown↑2
November 17, 2025Michael RedmondMeijin　Colors unknown↓24
November 6, 2025Tsuruyama AtsushiOza　Colors unknown↓15
November 2, 2025Suzuki ShinjiSGW Cup Chuyo Round 4　as Black↓10
November 2, 2025Mizokami TomochikaSGW Cup Chuyo Round 3　as Black↑17
November 1, 2025Kono MitsukiSGW Cup Chuyo Round 2　as Black↑12
November 1, 2025Aoki ShinichiSGW Cup Chuyo Round 1　as Black↑8
October 20, 2025Yo ChitoTengen Preliminary A　as Black↓16

Head-to-head

Up to 10 opponents, most-played first. Records are from Numadate Sakiya'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
Anzai Nobuaki1-9.1001-10-2
Suzuki Ayumi6-2.7500-01-1
Koike Yoshihiro4-3.5711-21-0
Fujisawa Rina6-1.8570-12-0
Ichiriki Ryo0-7.0000-20-2
Shida Tatsuya2-4.3331-21-2
Yoda Norimoto1-5.1671-30-0
Uchida Shuhei2-4.3330-00-0
Chang Ruei Jie3-3.5000-20-0
Fujita Akihiko0-6.0000-00-1
Sun Zhe0-6.0000-10-1
Oomote Takuto3-2.6000-01-1
Terayama Rei2-3.4000-20-0
Han Zenki5-01.0000-00-0
Ohashi Hirofumi3-2.6002-00-2
Kono Mitsuki5-01.0001-00-0

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
202610-3.769
202519-10.655
20248-13.381
202316-18.471
202219-12.613
202116-10.615
202013-14.481
201914-14.500
201820-14.588
201718-15.545
201628-16.636
201521-12.636
201412-8.600
20138-6.571
201210-9.526
20117-5.583
20101-3.250
Total240-182.569

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