Hikosaka Naoto

Hikosaka Naoto (彦坂直人) has a rating of 1820, ranked 72 of 452 in professional play. Their highest rating so far is 1905 (February 11, 2008).

Hikosaka Naoto9 dan彦坂直人Nihon Ki-in Chubu

Rating1820

Rank72

1-year change↓46

Peak rating1905

Last 10616-481

2026 record: 16-8
Record since 1927: 616-481(2 no result)
Win rate: .561

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

27 gamesHigh 1904Low 1820

91 gamesHigh 1904Low 1758

157 gamesHigh 1904Low 1726

615 gamesHigh 1905Low 1705

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 3, 2026	Kato YukiHoninbo　Colors unknown	Loss	↓26
August 27, 2026	Ohashi NaruyaGosei　Colors unknown	Loss	↓21
August 24, 2026	Yanagisawa SatoshiOza　Colors unknown	Win	↑9
August 10, 2026	Konishi YoshiakiraTengen　Colors unknown	Win	↑13
August 6, 2026	Yanaka KatsunoriHoninbo　Colors unknown	Win	↑4
July 27, 2026	Inagaki YoOza　Colors unknown	Win	↑1
July 9, 2026	Katayama YasuoTengen　Colors unknown	Win	↑3
June 29, 2026	Ishida AtsushiHoninbo　Colors unknown	Win	↑7
June 18, 2026	Kawada KoheiOza　Colors unknown	Win	↑4
June 8, 2026	Kumamoto ShuseiTengen　Colors unknown	Win	↑6
June 1, 2026	Hane NaokiMeijin　Colors unknown	Loss	↓17
May 28, 2026	Yanagisawa SatoshiJudan　Colors unknown	Loss	↓25
May 18, 2026	Imabun TaroKisei First Tournament Preliminary Final　Colors unknown	Loss	↓21
April 30, 2026	Cho ChikunTeikei Cup Legend Round 3　as White	Loss	↓20
April 27, 2026	Shimojima YoheiMeijin　Colors unknown	Win	↑12
April 20, 2026	Fujita ReoKisei First Tournament Preliminary Semifinal　Colors unknown	Win	↑4
April 13, 2026	Yamamori TadanaoTengen　Colors unknown	Win	↑5
March 26, 2026	O MeienTeikei Cup Legend Round 2　as Black	Win	↑14
March 19, 2026	Kim PyonjunKisei First Tournament Preliminary Quarterfinal　Colors unknown	Win	↑4
March 12, 2026	Otake YuOkan Main Tournament Round 1　Colors unknown	Loss	↓5

Head-to-head

Up to 10 opponents, most-played first. Records are from Hikosaka Naoto'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
Yamashiro Hiroshi	13-15.464	7-7	4-2
Kobayashi Koichi	15-10.600	6-5	5-4
Yamada Kimio	11-12.478	3-3	7-6
Hane Yasumasa	10-11.476	2-2	4-4
O Rissei	5-15.250	2-6	3-9
Imamura Yoshiaki	11-7.611	4-3	2-2
O Meien	7-11.389	7-7	0-4
Kato Masao	8-9.471	4-4	4-5
Kobayashi Satoru	3-14.176	1-6	2-7
Nakano Hironari	6-9.400	3-2	1-3
Matsuoka Hideki	14-1.933	3-0	2-0
Cho Chikun	2-13.133	1-8	1-4
Ogata Masaki	8-6.571	2-3	3-2
Kato Yuki	10-4.714	3-0	2-1
Yamashita Keigo	3-11.214	2-6	1-4
Shimojima Yohei	10-3.769	2-1	2-0
Kataoka Satoshi	7-6.538	4-4	3-2
Ishii Kunio	8-4.667	1-1	4-2
Nakao Jungo	10-2.833	1-1	1-0
Cho Sonjin	6-6.500	3-1	3-5
Yuki Satoshi	4-8.333	1-3	2-2
Hane Naoki	3-8.273	2-4	1-1
Imamura Toshiya	4-7.364	2-4	1-3
Shida Tatsuya	3-8.273	1-3	2-2
Ohashi Naruya	6-5.545	2-0	3-2
Yoda Norimoto	4-5.444	2-2	2-3
Takei Takashi	7-4.636	2-3	2-0
Takao Shinji	3-8.273	0-3	3-4
Goto Shungo	6-5.545	0-2	4-2
Cho U	4-7.364	2-3	2-2
Yamamori Tadanao	8-3.727	3-1	1-1
Takemiya Masaki	5-5.500	2-3	2-1
Miyagawa Fumihiko	9-1.900	2-0	0-0
Iyama Yuta	2-8.200	0-2	1-2
Kawada Kohei	10-01.000	2-0	2-0
Ryu Shikun	6-4.600	2-1	4-3
Nakane Naoyuki	7-2.778	1-0	2-0
Ishida Atsushi	8-1.889	3-0	2-0
Rin Kaiho	4-5.444	2-2	2-3
Yanaka Katsunori	8-1.889	2-1	1-0
Yanagisawa Satoshi	7-2.778	1-1	2-0
Sonoda Yuichi	4-4.500	3-1	1-3
Ishida Yoshio	2-6.250	1-4	1-2
Iwamaru Taira	7-1.875	4-1	1-0
Kiyonari Tetsuya	4-4.500	2-2	2-0
Muramatsu Hiroki	4-3.571	2-1	2-1
Sakai Hideyuki	0-7.000	0-6	0-1
Otake Yu	1-6.143	0-0	0-2
Komatsu Hideki	1-6.143	1-4	0-2
Tsuruta Kazushi	1-6.143	0-1	0-3
Tei Meiko	2-4.333	2-2	0-2
Mimura Tomoyasu	3-3.500	2-0	1-3
Iwata Tatsuaki	5-1.833	1-0	0-1
Otani Naoki	3-3.500	1-1	1-1
Ito Yoji	6-01.000	2-0	1-0
Ida Atsushi	2-4.333	1-3	0-1
Mutsuura Yuta	5-1.833	0-0	2-0
Kitano Ryo	5-1.833	2-0	0-0
Otake Hideo	1-5.167	1-2	0-3
Kono Rin	3-3.500	2-2	0-0
Kato Chie	6-01.000	1-0	0-0
Sasaka Shiro	3-2.600	0-1	0-0
Tajima Shingo	3-2.600	2-1	1-0
Tsuchida Masamitsu	4-1.800	3-0	0-1
Baba Shigeru	4-1.800	1-0	2-0
Kumamoto Shusei	4-1.800	0-0	0-0
Honda Kunihisa	1-4.200	1-1	0-2
Kim Hyunjong	5-01.000	1-0	1-0
So Yokoku	4-1.800	1-0	2-1
Takahashi Masumi	4-1.800	1-0	2-0
Hiroe Hiroyuki	4-1.800	3-0	1-0
Nakamura Shinya	1-4.200	0-2	1-1
Kim Sujun	3-2.600	2-2	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	16-8	.667
2025	22-7	.759
2024	18-12	.600
2023	26-12	.684
2022	20-12	.625
2021	19-11	.633
2020	11-13	.458
2019	14-11	.560
2018	18-13	.581
2017	22-13	.629
2016	24-13	.649
2015	27-15	.643
2014	15-14	.517
2013	12-9	.571
2012	19-11	.633
2011	26-11	.703
2010	11-13	.458
2009	14-13	.518
2008	11-16	.407
2007	10-9	.526
2006	20-13	.606
2005	24-16	.600
2004	21-14	.600
2003	19-12	.613
2002	7-16(2 no result)	.304
2001	4-5	.444
2000	8-22	.267
1999	22-17	.564
1998	19-13	.594
1997	10-8	.556
1996	6-7	.462
1995	4-5	.444
1994	3-6	.333
1993	4-7	.364
1992	5-8	.385
1991	13-9	.591
1990	6-4	.600
1989	15-9	.625
1988	4-7	.364
1987	10-13	.435
1986	8-8	.500
1985	6-12	.333
1984	9-7	.563
1983	14-3	.824
1982	0-4	.000
Total	616-481(2 no result)	.561

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