Go Player Ratings

JAAbout ratings

Yamamori Tadanao

Yamamori Tadanao (山森忠直) has a rating of 1599, ranked 198 of 452 in professional play. Their highest rating so far is 1833 (August 22, 2019).

Yamamori Tadanao7 dan山森忠直Nihon Ki-in Chubu
Rating1599
Rank198
1-year change↑16
Peak rating1833
Last 10261-207
2026 record
9-7
Record since 1927
261-207
Win rate
.558

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

Professional ratingsFind a player

Rating history — professional

19 gamesHigh 1618Low 1569
74 gamesHigh 1740Low 1569
118 gamesHigh 1769Low 1569
384 gamesHigh 1833Low 1507

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 20, 2026Izumitani HideoSGW Cup Chuyo Preliminary Semifinal　Colors unknown↓19
August 20, 2026Oba JunyaSGW Cup Chuyo Preliminary Round 1　Colors unknown↑24
August 10, 2026Komatsu DaikiGosei　Colors unknown↑18
July 23, 2026Yanagisawa SatoshiOza　Colors unknown↓11
June 15, 2026Terada ShutaOza　Colors unknown↑17
June 8, 2026Torii YutaHoninbo　Colors unknown↓13
June 1, 2026Shimojima YoheiOkan　Colors unknown↓8
May 18, 2026Hane YasumasaOza　Colors unknown↑13
May 7, 2026Matsuoka HidekiJudan　Colors unknown↓13
April 13, 2026Hikosaka NaotoTengen　Colors unknown↓5
March 30, 2026Hiroe HiroyukiJudan　Colors unknown↑8
March 23, 2026Kim HyunjongHoninbo　Colors unknown↑5
March 2, 2026Asano YasukoJudan　Colors unknown↑2
February 19, 2026Ha YoungilKisei First Tournament Preliminary Round 2　Colors unknown↓7
January 29, 2026Kato YukiJudan　Colors unknown↑17
January 15, 2026Minematsu MasakiKisei First Tournament Preliminary Round 1　Colors unknown↑3
November 13, 2025Miyagawa FumihikoMeijin　Colors unknown↓19
September 18, 2025Suzuki ShinjiSGW Cup Chuyo Preliminary Round 2　as White↓5
September 18, 2025Yoshihara YukariSGW Cup Chuyo Preliminary Round 1　as Black↑10
August 21, 2025Oba JunyaGosei　Colors unknown↓7

Head-to-head

Up to 10 opponents, most-played first. Records are from Yamamori Tadanao'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
Kato Yuki8-5.6150-00-0
Hikosaka Naoto3-8.2731-11-3
Inagaki Yo8-2.8000-00-0
Yamashiro Hiroshi6-4.6000-00-0
Yoshioka Kaoru7-3.7000-00-0
Shimojima Yohei3-6.3330-00-0
Nakane Naoyuki1-8.1110-00-0
Kim Hyunjong8-1.8890-00-0
Kawada Kohei8-1.8890-00-0
Asano Yasuko8-01.0000-00-0
Hane Yasumasa5-3.6250-00-0
Kumamoto Shusei3-5.3750-00-0
Imamura Yoshiaki4-4.5000-00-0
Miyagawa Fumihiko5-3.6250-00-0
Aoba Kaori4-3.5710-00-0
Ogata Masaki3-4.4290-00-1
Baba Shigeru4-3.5710-00-0
Bian Wenkai4-3.5710-00-0
Mutsuura Yuta2-5.2860-00-0
Matsuoka Hideki3-4.4290-00-0
Nakano Hironari2-4.3330-00-0
Hotta Seiji5-1.8330-00-0
Ito Kenryo3-3.5000-00-0
Shinoda Mitsuaki6-01.0000-00-0
Ito Yoji3-3.5000-00-0
Takao Mari4-2.6670-00-0
Ida Atsushi0-6.0000-10-0
Shida Tatsuya0-5.0000-00-0
Tajima Shingo4-1.8000-00-0
Kamiji Hiroki5-01.0000-00-0
Yanagisawa Satoshi2-3.4000-00-0
Hiroe Hiroyuki3-2.6000-00-0
Nakao Jungo1-4.2000-00-0
Nishioka Masao1-4.2000-00-0

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
20269-7.563
202511-12.478
202420-11.645
202312-11.522
20228-13.381
202119-7.731
20206-11.353
201924-11.686
201824-11.686
201720-18.526
201614-9.609
201516-10.615
20144-4.500
20134-4.500
20128-6.571
20114-7.364
20103-3.500
20096-4.600
20070-1.000
20066-6.500
20057-10.412
200412-14.462
200317-10.630
20027-6.538
20000-1.000
Total261-207.558

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