Go Player Ratings

JAAbout ratings

Kori Toshio

Kori Toshio (郡寿男) has a rating of 1333, ranked 384 of 452 in professional play. Their highest rating so far is 1640 (February 16, 2006).

Kori Toshio9 dan郡寿男Nihon Ki-in Kansai HQ
Rating1333
Rank384
1-year change↓19
Peak rating1640
Last 10164-241
2026 record
3-6
Record since 1927
164-241
Win rate
.405

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 1352Low 1324
37 gamesHigh 1470Low 1324
65 gamesHigh 1470Low 1324
235 gamesHigh 1640Low 1324

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
June 25, 2026Sakai TakashiOza　Colors unknown↓6
May 28, 2026Tajima ShingoHoninbo　Colors unknown↓8
May 18, 2026Asahi YujunGosei　Colors unknown↓6
April 27, 2026Takagi JunpeiHoninbo　Colors unknown↑16
April 13, 2026Utani ShuntaTengen　Colors unknown↓7
March 26, 2026Yasuda AkikaHoninbo　Colors unknown↑10
March 19, 2026Minematsu MasakiGosei　Colors unknown↑10
January 29, 2026Tsukuda AkikoJudan　Colors unknown↓15
January 22, 2026Inoue NaokiKisei First Tournament Preliminary Round 1　Colors unknown↓8
December 4, 2025Kikkawa HajimeMeijin　Colors unknown↓5
July 28, 2025Enda YoichiRyusei　Colors unknown↓24
July 10, 2025Iwamaru TairaOza　Colors unknown↓7
July 7, 2025Mito ShuheiJudan　Colors unknown↓2
June 19, 2025Oda TeppeiHoninbo　Colors unknown↓23
May 22, 2025Takabayashi MasahiroTengen　Colors unknown↓13
May 12, 2025Goto HajimuMeijin　Colors unknown↓7
May 1, 2025Yanaka KatsunoriHoninbo　Colors unknown↑23
March 17, 2025Asahi YujunAgon Kiriyama Cup　Colors unknown↓10
February 20, 2025Sasaki TsuyoshiMeijin　Colors unknown↑20
January 30, 2025Tsukuda AkikoKisei First Tournament Preliminary Round 2　Colors unknown↓16

Head-to-head

Up to 10 opponents, most-played first. Records are from Kori Toshio'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
Hane Yasumasa4-6.4001-21-1
Ishii Kunio3-6.3330-00-0
Tsukuda Akiko4-4.5000-00-0
Yamada Wakio8-01.0000-00-0
Takagi Junpei5-3.6250-00-0
Yamada Shiho4-3.5710-00-0
Takabayashi Masahiro4-3.5710-00-0
Minematsu Masaki5-2.7140-00-0
Oda Teppei3-4.4290-00-0
Ogata Masaki1-5.1670-10-0
Mito Yukari5-1.8330-00-0
Sakamoto Yasuo3-3.5000-00-0
Goto Shungo1-5.1670-00-1
Ohashi Naruya2-3.4000-00-0
Takei Takashi0-5.0000-00-0
Tajima Shingo1-4.2000-00-0
Enda Hideki0-5.0000-00-0
O Rissei1-4.2000-31-1
Tanaka Nobuyuki0-5.0000-00-0
Iwamaru Taira1-4.2000-00-0
Yanagawa Hiromasa4-1.8001-01-0
Sasaki Tsuyoshi2-3.4000-00-0
Kitano Ryo3-2.6000-00-0
Utani Shunta1-4.2000-00-0
Yamamoto Kentaro2-3.4000-00-0
Sakaguchi Ryuzo2-3.4000-00-0

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
20263-6.333
20253-10.231
20244-9.308
20237-9.438
20225-7.417
20216-10.375
20200-7.000
201916-10.615
20186-10.375
20177-11.389
20166-12.333
201511-8.579
20144-5.444
20134-3.571
20124-7.364
20115-7.417
20101-2.333
20091-1.500
20070-1.000
20065-6.455
200512-9.571
20046-10.375
20037-8.467
20026-9.400
19990-1.000
19940-3.000
19932-4.333
19921-01.000
19910-1.000
19900-3.000
19890-4.000
19882-4.333
19875-5.500
19864-11.267
19853-2.600
19840-2.000
19831-1.500
19823-7.300
19815-5.500
19804-3.571
19790-1.000
19781-4.200
19772-2.500
19762-1.667
Total164-241.405

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