Go Player Ratings

JAAbout ratings

Imamura Yoshiaki

Imamura Yoshiaki (今村善彰) has a rating of 1647, ranked 170 of 452 in professional play. Their highest rating so far is 1896 (January 16, 2006).

Imamura Yoshiaki9 dan今村善彰Nihon Ki-in Chubu
Rating1647
Rank170
1-year change↑12
Peak rating1896
Last 10341-314
2026 record
12-6
Record since 1927
341-314
Win rate
.521

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

Professional ratingsFind a player

Rating history — professional

22 gamesHigh 1678Low 1614
69 gamesHigh 1776Low 1600
124 gamesHigh 1837Low 1600
430 gamesHigh 1896Low 1600

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 3, 2026Komatsu DaikiOza　Colors unknown↓19
August 27, 2026Oba JunyaGosei　Colors unknown↓12
August 6, 2026Takao MariTengen　Colors unknown↑10
July 27, 2026Kitazawa MasaakiOza　Colors unknown↑5
July 13, 2026Enda HidekiGosei　Colors unknown↑11
June 22, 2026Katayama YasuoOza　Colors unknown↑7
June 11, 2026Nakamura ShinyaJudan　Colors unknown↓11
May 28, 2026Nakano ShoyaJudan　Colors unknown↑13
May 14, 2026O KeiiJudan　Colors unknown↑12
May 7, 2026Otake YuOkan Main Tournament Round 2　Colors unknown↓2
April 16, 2026Taniguchi ToruKisei First Tournament Preliminary Semifinal　Colors unknown↓8
April 9, 2026Terada ShutaHoninbo　Colors unknown↓20
April 2, 2026Hoda ShotaJudan　Colors unknown↑15
March 19, 2026Konno TametoKisei First Tournament Preliminary Quarterfinal　Colors unknown↑10
March 5, 2026Kamiji HirokiJudan　Colors unknown↑2
February 19, 2026Kitazawa MasaakiKisei First Tournament Preliminary Round 2　Colors unknown↑5
February 5, 2026Ikawa RyougoJudan　Colors unknown↑9
January 15, 2026Sekiyama HonokaKisei First Tournament Preliminary Round 1　Colors unknown↑7
November 17, 2025Nakane NaoyukiMeijin　Colors unknown↓15
October 30, 2025Ogata MasakiTengen　Colors unknown↓10

Head-to-head

Up to 10 opponents, most-played first. Records are from Imamura Yoshiaki'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
Hikosaka Naoto7-11.3892-23-4
Ogata Masaki6-11.3530-20-2
Nakano Hironari3-12.2000-12-3
Shimojima Yohei9-3.7500-01-0
Hane Naoki1-11.0831-20-6
Nakane Naoyuki6-6.5000-00-0
Yamashiro Hiroshi4-8.3331-11-1
Yamada Kimio5-7.4172-32-1
Shida Tatsuya1-10.0910-00-1
Ueki Yoshio7-2.7783-00-0
Hane Yasumasa5-4.5560-11-0
Otake Yu5-4.5560-00-0
Nakao Jungo7-2.7780-00-0
Shinoda Mitsuaki8-01.0000-00-0
Yamamori Tadanao4-4.5000-00-0
Yuki Satoshi1-7.1251-50-1
Mutsuura Yuta2-5.2860-00-1
Hiroe Hiroyuki5-2.7140-10-0
Goto Shungo2-5.2860-00-0
Matsuoka Hideki3-4.4291-10-0
Nakamura Shinya4-3.5710-00-1
Kawada Kohei6-1.8570-00-0
O Keii4-2.6670-00-0
O Rissei1-5.1671-30-2
Ito Yoji5-1.8331-10-0
Yanaka Katsunori6-01.0000-00-0
Ishii Kunio4-2.6670-00-0
Komatsu Hideki0-6.0000-10-3
Yoda Norimoto0-5.0000-20-2
Ishida Atsushi3-2.6000-00-0
Ito Kenryo4-1.8000-00-0
Iwata Tatsuaki5-01.0001-01-0
Ida Atsushi1-4.2000-00-1
O Meien2-3.4001-30-0
Okumura Hideo3-2.6000-00-1
Kono Rin4-1.8001-12-0
Kato Yuki4-1.8000-00-0
Katayama Yasuo4-1.8000-00-0
Cho Sonjin1-4.2000-11-3

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
202612-6.667
20259-13.409
20248-13.381
202313-9.591
202216-12.571
202123-12.657
20209-9.500
201918-12.600
201816-19.457
201720-16.556
201611-12.478
201518-6.750
20146-8.429
20135-8.385
201213-10.565
201110-6.625
20102-2.500
20091-5.167
20084-5.444
20071-8.111
200614-11.560
200525-12.676
200414-15.483
200322-9.710
200212-8.600
20011-1.500
20001-9.100
19992-5.286
19970-2.000
19961-01.000
19952-8.200
19947-6.538
19933-2.600
19922-9.182
199111-4.733
19905-7.417
19892-5.286
19881-5.167
19860-2.000
19850-2.000
19831-1.500
Total341-314.521

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