Go Player Ratings

JAAbout ratings

Hasegawa Sunao

Hasegawa Sunao (長谷川直) has a rating of 1525, ranked 249 of 452 in professional play. Their highest rating so far is 1635 (April 2, 2006).

Hasegawa Sunao9 dan長谷川直Kansai Ki-in
Rating1525
Rank249
1-year change↓23
Peak rating1635
Last 1071-111
2026 record
0-2
Record since 1927
71-111(2 no result)
Win rate
.390

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

Professional ratingsFind a player

Rating history — professional

2 gamesHigh 1533Low 1525
6 gamesHigh 1585Low 1525
19 gamesHigh 1599Low 1525
47 gamesHigh 1635Low 1525

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
April 29, 2026Kurahashi MasayukiJudan Preliminary A　as White↓8
February 4, 2026Otani KensukeKisei First Tournament Preliminary Round 2　Colors unknown↓14
March 5, 2025Hatanaka HoshinobuMeijin Preliminary C　as White↓12
December 18, 2024Otani KensukeKisei First Tournament Preliminary Round 1　Colors unknown↓22
February 22, 2024Mutsuura YutaKisei First Tournament Round 2　as Black↓4
February 1, 2024Yamada ShihoKisei First Tournament Preliminary Round 1　Colors unknown↑6
September 6, 2023Okawa TakuyaGosei Preliminary A　as Black↓18
August 31, 2023Sato YoheiHoninbo Preliminary B　as Black↑12
March 8, 2023Sakai KentaroJudan Preliminary B　as Black↑14
January 19, 2023Ishida AtsushiKisei First Tournament Preliminary Round 2　Colors unknown↓16
December 21, 2022Hoshikawa KoyoKisei First Tournament Preliminary Round 1　Colors unknown↑17
July 20, 2022Tanaka KoyuTengen Preliminary A　as Black↓7
March 30, 2022Sonoda YuichiKisei First Tournament Preliminary Semifinal　Colors unknown↓10
March 17, 2022Tanemura SayuriKisei First Tournament Preliminary Quarterfinal　Colors unknown↑3
February 2, 2022Utsumi KokiOza Preliminary A　as White↓16
January 19, 2022Tamura ChiakiKisei First Tournament Preliminary Round 2　Colors unknown↑9
December 23, 2021Matsuoka HidekiKisei First Tournament Preliminary Round 1　Colors unknown↑21
December 1, 2021Sonoda YuichiTeikei Cup Legend Preliminary　as White↓15
October 20, 2021Abe YoshikiOza Preliminary A　as White↑21
January 21, 2021Muramatsu HirokiKisei First Tournament Preliminary Round 1　Colors unknown↓5

Head-to-head

Up to 10 opponents, most-played first. Records are from Hasegawa Sunao'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 Satoru2-5.2862-20-1
O Rissei0-5.0000-10-4
Awaji Shuzo1-3.2500-01-3
Sakaguchi Ryuzo2-2.5001-11-1
Moriyama Naoki1-2.3331-00-2
Sakata Eio0-3.0000-20-1
Ohira Shuzo0-3.0000-10-2
Imamura Toshiya1-2.3331-10-1
Iwata Tatsuaki1-2.3331-10-1
Rui Naiwei2-1.6672-00-1

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.

YearRecordWin rate
20260-2.000
20250-1.000
20241-2.333
20232-2.500
20223-3.500
20212-2.500
20201-2.333
20191-01.000
20180-2.000
20172-4.333
20164-3.571
20150-2.000
20140-1.000
20062-3.400
20053-1.750
20042-4.333
20031-4.200
20023-5.375
20013-6.333
20005-7(2 no result).417
19995-2.714
19983-2.600
19960-1.000
19940-2.000
19930-1.000
19920-1.000
19911-4.200
19904-4.500
19891-7.125
19886-4.600
19873-5.375
19860-3.000
19851-2.333
19831-5.167
19823-4.429
19816-6.500
19801-1.500
19791-01.000
19770-1.000
Total71-111(2 no result).390

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