Hisai Keishi

Hisai Keishi (久井敬史) has a rating of 1495.

Retired. The rating shown is the rating at retirement.

Hisai Keishi久井敬史Nihon Ki-in

Rating1495

Rank—

1-year change—

Peak rating—

Last 10168-150(1 lost by default)

1985 record: 0-1
Record since 1927: 168-150(1 jigo)
Win rate: .528

Rating at retirement (not included in the rating list)

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

Professional ratings Find a player

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
Date	Opponent and tournament	Result	Change
January 31, 1985	Tono HiroakiKisei 9 dan Section　as White	Loss	↓9
December 13, 1984	Kudo NorioKisei 9 dan Section　as Black	Win	↑24
August 2, 1984	Takagi ShoichiHoninbo 3rd Preliminary　as Black	Loss	↓4
May 10, 1984	Koyama YasuoJudan 3rd Preliminary Final　as Black	Loss	↓13
April 11, 1984	Ushinohama SatsuoJudan 3rd Preliminary　as Black	Win	↑28
December 15, 1983	Yoshida YoichiKisei 9 dan Section　as White	Loss	↓15
February 24, 1983	O RisseiTengen Round 1　as Black	Loss	↓7
January 27, 1983	Ishida AkiraOza 3rd Preliminary　as Black	Loss	↓4
January 1, 1983	Kajiwara TakeoNHK Cup Round 1　as White	Loss	↓10
December 23, 1982	Kudo NorioKisei 9 dan Section　as Black	Loss	↓7
November 25, 1982	Kobayashi SatoruOza 3rd Preliminary　as White	Win	↑26
October 28, 1982	Hashimoto ShojiGosei Round 1　as Black	Loss	↓5
September 2, 1982	Nabeshima IchiroJudan 2nd Preliminary　as White	Loss	↓20
June 10, 1982	Kamimura KunioHoninbo 3rd Preliminary Round 1　as White	Loss	↓12
April 22, 1982	Nabeshima IchiroMeijin 2nd Preliminary　as Black	Loss	—
December 10, 1981	Takagawa ShukakuKisei 9 dan Section　as Black	Loss	↓9
June 11, 1981	Hane YasumasaHoninbo 2nd Preliminary　as White	Loss	↓9
January 15, 1981	Kiyonari TetsuyaOza 3rd Preliminary　as Black	Loss	↓16
December 11, 1980	Miyamoto YoshihisaGosei Round 2　as Black	Loss	↓20
December 4, 1980	Sanno HirotakaKisei 9 dan Section　as Black	Loss	↓18

Head-to-head

Up to 10 opponents, most-played first. Records are from Hisai Keishi'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
Fujisawa Shuko	4-8.333	3-5	1-3
Segawa Yoshio	8-3.727	7-3	1-0
Nabeshima Ichiro	7-3.700	4-2	3-1
Hane Yasumasa	3-6.333	2-1	1-5
Fujisawa Hosai	3-6.333	2-3	1-3
Sometani Kazuo	6-3.667	5-2	1-1
Shimamura Toshihiro	3-6.333	2-3	1-3
Takagawa Shukaku	1-7.125	1-2	0-5
Sumino Tsunehiro	4-3.571	3-2	1-1
Yoshida Yoichi	3-4.429	2-2	1-2
Iwata Tatsuaki	1-5.167	0-3	1-2
Kusaka Kaneo	5-1.833	2-0	3-1
Ishii Kunio	4-2.667	4-1	0-1
Kudo Norio	2-3.400	1-2	1-1
Ohira Shuzo	2-3.400	0-2	2-1
Sakai Michiharu	3-2.600	3-1	0-1
Hayase Hiroshi	4-1.800	2-0	2-1

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
1985	0-1	.000
1984	2-2	.500
1983	0-4	.000
1982	1-5	.167
1981	0-3	.000
1980	1-5	.167
1979	4-5	.444
1978	4-4	.500
1977	0-1	.000
1976	2-2	.500
1975	3-4	.429
1974	14-6	.700
1973	11-6	.647
1972	8-6	.571
1971	9-8	.529
1970	12-13	.480
1969	10-8	.556
1968	13-12	.520
1967	12-5	.706
1966	4-8	.333
1965	13-9	.591
1964	11-7	.611
1963	7-10(1 jigo)	.412
1962	5-7	.417
1961	10-3	.769
1960	12-5	.706
1956	0-1	.000
Total	168-150(1 jigo)	.528

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