Kobayashi Satoru

Kobayashi Satoru (小林覚) has a rating of 1681, ranked 146 of 452 in professional play. Their highest rating so far is 2027 (September 14, 2006).

Kobayashi Satoru9 dan小林覚Nihon Ki-in Tokyo

Rating1681

Rank146

1-year change↓53

Peak rating2027

Last 10861-625(1 by default, 1 lost by default)

2026 record: 5-7
Record since 1927: 861-625
Win rate: .579

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

13 gamesHigh 1723Low 1659

66 gamesHigh 1889Low 1659

106 gamesHigh 1889Low 1659

679 gamesHigh 2027Low 1635

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
September 14, 2026	Ogaki YusakuOza Preliminary B　as Black	Loss	↓12
August 27, 2026	Takanashi SeikenGosei　Colors unknown	Win	↑14
July 16, 2026	Chang FukangGosei　Colors unknown	Win	↑20
May 28, 2026	Cho SonjinTengen　Colors unknown	Loss	↓17
May 21, 2026	Oomote TakutoHoninbo　Colors unknown	Loss	↓12
May 14, 2026	Rin KanketsuJudan　Colors unknown	Loss	↓5
April 23, 2026	Yamamoto MasatoTengen　Colors unknown	Win	↑4
April 13, 2026	Kobayashi IzumiTeikei Cup Legend Round 2　as Black	Loss	↓23
April 6, 2026	Inaba TakahiroJudan　Colors unknown	Win	↑16
March 5, 2026	Yoshihara YukariTeikei Cup Legend Round 1　as White	Win	↑7
January 26, 2026	Ryu ShikunMeijin Preliminary B　as White	Loss	↓9
January 15, 2026	Katsura AtsushiKisei First Tournament Preliminary Round 1　Colors unknown	Loss	↓26
October 30, 2025	Ueno RisaOza Preliminary A　as White	Loss	↓10
August 18, 2025	Chang Ruei JieGosei Preliminary A　as White	Loss	↓8
July 28, 2025	Izumitani HideoRyusei　Colors unknown	Loss	↓26
July 24, 2025	Fujisawa RinaMeijin Preliminary A　as Black	Loss	↓8
July 3, 2025	Takemiya YokoTengen　Colors unknown	Loss	↓26
June 30, 2025	Morita MichihiroJudan　Colors unknown	Loss	↓23
June 26, 2025	Kono MitsukiHoninbo　Colors unknown	Loss	↓26
June 9, 2025	Chen BoshaoJudan Preliminary B　as White	Win	↑6

Head-to-head

Up to 10 opponents, most-played first. Records are from Kobayashi Satoru'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
Cho Chikun	34-36.486	15-16	18-19
O Rissei	17-27.386	8-9	9-14
Yoda Norimoto	15-26.366	8-15	7-11
Kobayashi Koichi	17-21.447	10-11	7-10
Yamada Kimio	10-16.385	4-6	6-9
Takemiya Masaki	12-13.480	5-4	7-8
Rin Kaiho	15-10.600	6-4	8-6
Cho U	8-17.320	4-9	4-6
Yamashita Keigo	7-18.280	2-7	5-11
O Meien	16-8.667	8-4	7-4
Otake Hideo	14-9.609	7-2	7-5
Ishida Yoshio	14-6.700	6-4	7-2
Kato Masao	7-12.368	5-9	2-3
Kataoka Satoshi	12-7.632	5-2	4-5
Yamashiro Hiroshi	8-10.444	6-5	2-4
So Yokoku	8-10.444	2-5	6-3
Hane Naoki	9-8.529	6-4	3-3
Takao Shinji	6-11.353	2-6	3-3
Hikosaka Naoto	14-3.824	7-2	6-1
Yuki Satoshi	8-9.471	4-5	4-4
Ryu Shikun	9-8.529	5-3	4-5
Cho Sonjin	8-8.500	4-2	3-5
Awaji Shuzo	7-7.500	4-4	3-1
Iyama Yuta	6-7.462	2-3	3-4
Mimura Tomoyasu	6-6.500	2-3	4-1
Ko Iso	5-7.417	2-3	1-3
Takagi Shoichi	10-2.833	6-0	3-2
Kiyonari Tetsuya	5-7.417	2-2	3-5
Fujisawa Shuko	5-6.455	4-5	1-1
Sakai Hideyuki	5-6.455	4-1	1-4
Cho Riyu	8-3.727	4-0	3-2
Kono Rin	3-8.273	1-2	1-5
Komatsu Hideki	5-6.455	2-3	2-0
Nakano Hironari	6-4.600	4-2	2-2
Ohira Shuzo	4-6.400	2-4	2-2
Imamura Toshiya	7-3.700	2-2	5-1
Sonoda Yuichi	4-6.400	2-3	2-1
Hane Yasumasa	5-5.500	1-2	3-3
Ogaki Yusaku	6-4.600	1-3	1-0
Ishida Akira	4-6.400	3-2	0-4
Honda Kunihisa	8-1.889	3-0	2-1
Morita Michihiro	6-3.667	1-1	2-1
Rin Kanketsu	7-2.778	3-0	2-0
Yo Kagen	8-01.000	6-0	1-0
Kanda Ei	5-3.625	4-2	1-1
Suzuki Shinji	7-1.875	5-0	0-0
Sakata Eio	5-2.714	3-2	2-0
Hasegawa Sunao	5-2.714	1-0	2-2
Yu Zhengqi	2-5.286	0-2	2-3
Ishii Kunio	3-4.429	1-1	2-3
Miyazawa Goro	4-3.571	2-0	1-2
Hashimoto Shoji	3-4.429	2-3	1-1
Michael Redmond	4-3.571	0-0	3-2
Shida Tatsuya	3-3.500	2-2	1-1
Haruyama Isamu	4-2.667	2-1	1-0
Ida Atsushi	0-6.000	0-3	0-2
Kyo Kagen	2-4.333	1-2	0-1
Tono Hiroaki	3-3.500	0-3	3-0
Mizokami Tomochika	3-3.500	0-3	2-0
Kamimura Haruo	4-2.667	1-0	2-1
Matsumoto Takehisa	1-5.167	0-1	0-3
Sun Zhe	5-1.833	1-0	3-1
Sugiuchi Masao	5-1.833	2-0	3-1
Kono Mitsuki	5-1.833	2-0	2-0
Nakaonoda Tomomi	5-1.833	1-0	2-1
Kudo Norio	3-2.600	3-0	0-1
Motoki Katsuya	2-3.400	1-3	1-0
Kanazawa Makoto	4-1.800	1-0	2-1
Muramatsu Ryuichi	4-1.800	3-0	0-0
Tsuruyama Atsushi	1-4.200	1-1	0-2
Yukawa Mitsuhisa	4-1.800	2-0	1-1
Shuto Shun	3-2.600	0-0	2-1
Ishikura Noboru	5-01.000	2-0	2-0
Nakamura Hidehito	2-3.400	1-0	1-2
Oya Koichi	3-2.600	3-1	0-1
Kono Takashi	2-3.400	1-2	1-0
Han Zenki	3-2.600	3-0	0-1
Fujisawa Rina	2-3.400	1-1	0-1

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
2026	5-7	.417
2025	7-9	.438
2024	21-11	.656
2023	14-9	.609
2022	9-10	.474
2021	11-13	.458
2020	11-12	.478
2019	8-20	.286
2018	22-21	.512
2017	29-18	.617
2016	17-15	.531
2015	18-17	.514
2014	29-13	.691
2013	19-11	.633
2012	23-15	.605
2011	26-15	.634
2010	18-10	.643
2009	21-18	.538
2008	22-16	.579
2007	14-29	.326
2006	32-25	.561
2005	47-17	.734
2004	28-18	.609
2003	23-14	.622
2002	19-8	.704
2001	1-0	1.000
2000	17-12	.586
1999	20-19	.513
1998	23-16	.590
1997	21-22	.488
1996	25-20	.556
1995	39-15	.722
1994	20-7	.741
1993	18-13	.581
1992	11-10	.524
1991	20-14	.588
1990	16-11	.593
1989	11-10	.524
1988	12-6	.667
1987	4-6	.400
1986	14-9	.609
1985	14-11	.560
1984	24-15	.615
1983	15-7	.682
1982	13-4	.765
1981	5-5	.500
1980	4-2	.667
1979	7-5	.583
1978	3-4	.429
1977	5-4	.556
1976	4-5	.444
1975	2-1	.667
1974	0-1	.000
Total	861-625	.579

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