Go Player Ratings

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Iguchi Toyohide

Iguchi Toyohide (井口豊秀) has a rating of 1768, ranked 99 of 452 in professional play. Their highest rating so far is 1796 (June 19, 2015).

Iguchi Toyohide8 dan井口豊秀Nihon Ki-in Tokyo
Rating1768
Rank99
1-year change↑36
Peak rating1796
Last 10208-189(1 lost by default)
2026 record
9-7
Record since 1927
208-189
Win rate
.524

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

Professional ratingsFind a player

Rating history — professional

18 gamesHigh 1781Low 1733
63 gamesHigh 1781Low 1647
103 gamesHigh 1781Low 1583
328 gamesHigh 1796Low 1551

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 13, 2026Sotoyanagi SebunHoninbo　Colors unknown↓12
August 3, 2026Numadate SakiyaSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑18
August 3, 2026Kato AtsushiSGW Cup Chuyo Preliminary Round 1　Colors unknown↑19
July 27, 2026Han ZenkiJudan　Colors unknown↓16
July 6, 2026Kono MitsukiHoninbo　Colors unknown↑13
June 25, 2026Ko IsoMeijin　Colors unknown↓5
June 22, 2026Mochizuki KenichiJudan　Colors unknown↑19
June 18, 2026Takemiya MasakiOza　Colors unknown↓23
June 1, 2026Oomote TakutoGosei　Colors unknown↓16
May 14, 2026Ogaki YusakuMeijin　Colors unknown↑18
April 30, 2026Cho KosumiGosei　Colors unknown↑3
April 9, 2026Cho KoharuHoninbo　Colors unknown↑2
March 16, 2026Kojima TakahoGosei　Colors unknown↑2
March 9, 2026Kato AtsushiTengen Preliminary C　as Black↓15
February 5, 2026Nyu EikoKisei First Tournament Preliminary Round 2　Colors unknown↓19
January 26, 2026Xiao YuyangMeijin Preliminary B　as White↑24
December 11, 2025Shuto ShunMeijin　Colors unknown↑19
November 13, 2025Suzuki IsaoMeijin　Colors unknown↑6
September 11, 2025Onishi RyuheiOza Preliminary B　as White↓7
September 8, 2025Mizokami TomochikaSGW Cup Chuyo Preliminary Final　as Black↓13

Head-to-head

Up to 10 opponents, most-played first. Records are from Iguchi Toyohide'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
Kobayashi Koichi1-6.1430-11-2
Rin Shien1-5.1670-00-1
O Rissei1-5.1670-20-2
Ishida Yoshio2-4.3330-21-1
Rin Kaiho5-1.8331-03-0
Nishimura Keiji4-2.6670-00-0
Ogaki Yusaku2-3.4000-00-1
Oba Junya4-1.8000-00-0
Mitani Tetsuya2-3.4000-00-0
Akiyama Jiro2-2.5000-00-0

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
202517-11.607
20247-10.412
202317-9.654
20223-10.231
20218-9.471
20208-9.471
20199-10.474
201817-12.586
20179-13.409
20169-12.429
201510-7.588
201414-4.778
20138-5.615
20128-9.471
20117-8.467
20101-3.250
20092-4.333
20081-1.500
20070-2.000
20066-7.462
200515-7.682
200410-9.526
200313-9.591
20020-1.000
19990-1.000
Total208-189.524

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