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Tahara Yasufumi

Tahara Yasufumi (田原靖史) has a rating of 1504, ranked 262 of 452 in professional play. Their highest rating so far is 1614 (November 5, 2009).

Tahara Yasufumi7 dan田原靖史Nihon Ki-in Tokyo
Rating1504
Rank262
1-year change↑81
Peak rating1614
Last 10139-189
2026 record
4-7
Record since 1927
139-189
Win rate
.424

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

Professional ratingsFind a player

Rating history — professional

15 gamesHigh 1508Low 1446
47 gamesHigh 1508Low 1313
74 gamesHigh 1508Low 1254
249 gamesHigh 1614Low 1254

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 6, 2026Ryu ShikunOza　Colors unknown↓4
July 30, 2026Ohashi NaruyaSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑27
July 30, 2026Yanagisawa SatoshiSGW Cup Chuyo Preliminary Round 1　Colors unknown↑26
May 7, 2026Kanazawa HideoGosei　Colors unknown↓6
April 23, 2026Sakai MakiHoninbo　Colors unknown↓13
April 9, 2026Miyazaki RyutaroGosei　Colors unknown↑12
April 2, 2026Obuchi KotaroTengen　Colors unknown↓4
February 23, 2026Antti TörmänenTengen　Colors unknown↑14
February 5, 2026Chang Ruei JieJudan　Colors unknown↓3
January 29, 2026Kobayashi KoichiKisei First Tournament Round 1　as Black↓7
January 22, 2026Chang FukangMeijin　Colors unknown↓4
December 25, 2025Fujisawa KazunariMeijin Preliminary C　as White↑21
September 29, 2025Motoki KatsuyaOza　Colors unknown↓1
September 22, 2025Tanaka NobuyukiSGW Cup Chuyo Preliminary Round 2　as Black↓5
September 22, 2025Shimojima YoheiSGW Cup Chuyo Preliminary Round 1　as Black↑28
August 28, 2025Kudo NorioOza　Colors unknown↑16
August 4, 2025Yanai KazumaOza　Colors unknown↑24
July 21, 2025Takao ShinjiRyusei　Colors unknown↓1
July 3, 2025Koda AkikoOza　Colors unknown↑8
June 12, 2025Han ZenkiTengen　Colors unknown↓3

Head-to-head

Up to 10 opponents, most-played first. Records are from Tahara Yasufumi'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
Obuchi Kotaro1-3.2500-00-0
Yamada Takuji0-4.0000-00-0
Endo Yoshifumi2-2.5000-00-0
Rin Kaiho0-4.0000-30-0
Sakai Maki1-3.2500-00-0
Suzuki Yoshimichi0-4.0000-00-1
Komatsu Hideko4-01.0001-00-0
Michael Redmond2-2.5000-00-0
Nishimura Keiji2-2.5000-00-0
Arimura Hiroshi1-2.3330-00-0

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
20264-7.364
20259-9.500
20246-11.353
20236-10.375
20223-7.300
20212-10.167
20202-6.250
20193-10.231
20186-10.375
201712-13.480
20165-9.357
20159-11.450
20146-4.600
20136-5.545
20125-8.385
20117-5.583
20101-2.333
20092-1.667
20081-1.500
20068-7.533
20054-9.308
200419-9.679
20034-11.267
20024-9.308
19992-2.500
19981-01.000
19970-1.000
19950-1.000
19942-1.667
Total139-189.424

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