Ishii Kunio

Ishii Kunio (石井邦生) has a rating of 1503, ranked 263 of 452 in professional play. Their highest rating so far is 1735 (June 22, 2013).

Ishii Kunio9 dan石井邦生Nihon Ki-in Kansai HQ

Rating1503

Rank263

1-year change↓8

Peak rating1735

Last 10495-460

2026 record: 6-7
Record since 1927: 495-460
Win rate: .518

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

Professional ratings Find a player

Rating history — professional

1 year3 years5 yearsAll

15 gamesHigh 1542Low 1499

53 gamesHigh 1578Low 1483

96 gamesHigh 1644Low 1483

328 gamesHigh 1735Low 1483

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.
Date	Opponent and tournament	Result	Change
June 18, 2026	Tajima ShingoOza　Colors unknown	Loss	↓14
June 11, 2026	Otani NaokiGosei　Colors unknown	Loss	↓5
May 14, 2026	Iwamaru TairaGosei　Colors unknown	Win	↑24
April 30, 2026	Yamamoto KentaroJudan　Colors unknown	Loss	↓19
April 23, 2026	Tsukuda AkikoHoninbo　Colors unknown	Loss	↓23
April 6, 2026	Kitano RyoJudan　Colors unknown	Win	↑20
March 30, 2026	Sano TakatsuguGosei　Colors unknown	Win	↑5
March 12, 2026	Yasuda AkikaJudan　Colors unknown	Win	↑5
March 2, 2026	Kasahara YukiTengen　Colors unknown	Loss	↓18
February 16, 2026	Watanabe YuKisei First Tournament Preliminary Round 2　Colors unknown	Loss	↓12
February 5, 2026	Sekiyama HonokaJudan　Colors unknown	Win	↑9
January 26, 2026	Muramoto WataruMeijin　Colors unknown	Loss	↓3
January 8, 2026	Baba ShigeruKisei First Tournament Preliminary Round 1　Colors unknown	Win	↑7
December 18, 2025	Takabayashi MasahiroMeijin　Colors unknown	Win	↑15
November 17, 2025	Tanaka ChiekoMeijin　Colors unknown	Win	↑1
August 28, 2025	Komatsu DaikiOza　Colors unknown	Loss	↓9
July 28, 2025	Komatsu DaikiRyusei　Colors unknown	Loss	↓11
July 17, 2025	Yamada KimioOza　Colors unknown	Win	↑27
June 30, 2025	Tsukada ChiharuOza　Colors unknown	Win	↑12
June 19, 2025	Kikkawa HajimeHoninbo Preliminary B　as Black	Loss	↓9

Head-to-head

Up to 10 opponents, most-played first. Records are from Ishii Kunio's point of view; jigo and no-result games are not counted as wins or losses. Only games from 1927 onward are included.
Opponent	Total	As Black	As White
Hane Yasumasa	11-11.500	3-5	5-6
Takemiya Masaki	4-13.235	3-7	1-5
Otake Hideo	5-12.294	2-5	3-7
Kobayashi Koichi	4-12.250	3-6	1-6
Rin Kaiho	4-11.267	2-3	2-8
Enda Hideki	7-5.583	0-0	0-0
Yoshida Yoichi	5-7.417	3-3	2-4
Hikosaka Naoto	4-8.333	2-4	1-1
Ishida Yoshio	3-8.273	1-5	2-3
Ishida Akira	4-7.364	2-0	2-7
Cho Chikun	1-10.091	0-4	1-6
Kato Masao	3-7.300	1-4	2-3
Takei Takashi	5-5.500	0-0	0-0
Yamashiro Hiroshi	5-5.500	2-1	3-2
Yanaka Katsunori	6-4.600	0-0	0-0
Sakata Eio	3-6.333	3-1	0-5
Ohira Shuzo	3-6.333	2-2	1-4
Fujisawa Shuko	4-5.444	2-3	2-2
Araki Issei	6-3.667	0-0	0-0
Kori Toshio	6-3.667	0-0	0-0
Iwamaru Taira	5-4.556	0-0	0-0
Yamada Kimio	3-6.333	1-1	1-2
Sometani Kazuo	6-3.667	4-0	2-3
Sakai Michiharu	4-4.500	2-3	2-1
Hashimoto Yoshimi	4-4.500	2-3	2-1
Kitano Ryo	3-5.375	0-0	0-0
Sano Takatsugu	8-01.000	0-0	0-0
Sakaguchi Ryuzo	7-1.875	1-0	1-1
Shimamura Toshihiro	4-4.500	3-1	1-3
Kudo Norio	3-4.429	3-3	0-1
Nabeshima Ichiro	4-3.571	1-3	3-0
Enda Yoichi	7-01.000	0-0	0-0
Hashimoto Utaro	3-4.429	2-1	1-3
Kobayashi Satoru	4-3.571	3-2	1-1
Sasaki Tsuyoshi	5-2.714	0-0	0-0
Ozaki Harumi	5-1.833	3-0	2-1
Izutani Minoru	5-1.833	3-1	2-0
Tajima Shingo	5-1.833	0-0	0-0
Tsuchida Masamitsu	4-2.667	3-0	1-2
Iwata Tatsuaki	3-3.500	2-2	0-0
Kikkawa Hajime	2-4.333	0-1	0-0
Imamura Yoshiaki	2-4.333	0-0	0-0
Muramatsu Hiroki	3-3.500	0-0	0-0
Hisai Keishi	2-4.333	1-0	1-4
Tanemura Sayuri	5-1.833	0-0	0-0
Nishigami Yoshihiko	4-2.667	1-0	1-0
Kataoka Satoshi	4-2.667	3-0	1-2
Saijo Masataka	4-2.667	3-0	1-1
Takagi Shoichi	2-4.333	1-3	1-1
Hashimoto Shoji	2-4.333	2-3	0-1
Nakano Hironari	0-5.000	0-1	0-0
Morishima Kaoru	5-01.000	1-0	4-0
Inagaki Koichi	4-1.800	2-1	2-0
Tsukuda Akiko	3-2.600	0-0	0-0
Yamabe Toshiro	2-3.400	1-1	1-2
Tsujii Ryotaro	5-01.000	2-0	2-0
Yamada Shiho	2-3.400	0-0	0-0
Ogata Masaki	3-2.600	1-0	1-1
Awaji Shuzo	1-4.200	0-2	1-2
Honda Kunihisa	1-4.200	1-1	0-3
Hayase Hiroshi	4-1.800	2-0	2-1
Fujisawa Hosai	2-3.400	0-2	2-1
Yanagawa Hiromasa	5-01.000	0-0	0-0
Tono Hiroaki	4-1.800	2-0	2-1
Isogawa Masao	3-2.600	2-1	1-1
Goto Shungo	1-4.200	0-0	0-0
Nakamura Shinya	1-4.200	0-0	0-0
Yamamoto Kentaro	3-2.600	1-0	0-0
Takagawa Shukaku	2-3.400	1-1	1-2
Tsuruta Kazushi	2-3.400	0-0	0-0
Kuwamoto Shinpei	0-5.000	0-0	0-0

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.

Year	Record	Win rate
2026	6-7	.462
2025	12-9	.571
2024	7-9	.438
2023	13-10	.565
2022	10-11	.476
2021	10-8	.556
2020	5-7	.417
2019	9-11	.450
2018	17-15	.531
2017	17-10	.630
2016	12-12	.500
2015	14-7	.667
2014	4-5	.444
2013	8-7	.533
2012	8-10	.444
2011	5-7	.417
2010	3-1	.750
2009	1-3	.250
2008	0-3	.000
2007	0-3	.000
2006	8-7	.533
2005	13-12	.520
2004	10-12	.455
2003	12-8	.600
2002	10-7	.588
2001	4-3	.571
2000	0-1	.000
1998	0-2	.000
1997	2-2	.500
1996	0-2	.000
1995	2-5	.286
1994	5-5	.500
1993	2-8	.200
1992	7-8	.467
1991	4-12	.250
1990	4-5	.444
1989	6-3	.667
1988	5-9	.357
1987	5-7	.417
1986	1-1	.500
1985	5-8	.385
1984	12-10	.545
1983	15-18	.455
1982	9-8	.529
1981	7-3	.700
1980	10-9	.526
1979	10-6	.625
1978	3-4	.429
1977	4-7	.364
1976	5-1	.833
1975	4-8	.333
1974	15-12	.556
1973	21-7	.750
1972	10-8	.556
1971	15-7	.682
1970	13-10	.565
1969	4-8	.333
1968	9-7	.563
1967	16-7	.696
1966	10-6	.625
1965	12-6	.667
1964	11-5	.688
1963	3-7	.300
1962	4-6	.400
1961	3-4	.429
1960	4-4	.500
Total	495-460	.518

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