Go Player Ratings

JAAbout ratings

Watanabe Yu

Watanabe Yu (渡辺由宇) has a rating of 1622, ranked 184 of 452 in professional play. Their highest rating so far is 1654 (October 9, 2025).

Watanabe Yu4 dan渡辺由宇Kansai Ki-in
Rating1622
Rank184
1-year change↓8
Peak rating1654
Last 1043-59
2026 record
2-3
Record since 1927
43-59
Win rate
.422

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

Professional ratingsFind a player

Rating history — professional

8 gamesHigh 1654Low 1622
33 gamesHigh 1654Low 1560
52 gamesHigh 1654Low 1548
92 gamesHigh 1654Low 1447

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
August 19, 2026Yukawa MitsuhisaOza Preliminary B　as White↓15
March 11, 2026Hara MasakazuKisei First Tournament Preliminary Quarterfinal　Colors unknown↓11
February 16, 2026Ishii KunioKisei First Tournament Preliminary Round 2　Colors unknown↑12
January 21, 2026Taniguchi ToruMeijin Preliminary B　as Black↓9
January 7, 2026Takatsu MasaakiKisei First Tournament Preliminary Round 1　Colors unknown↑11
November 19, 2025Tanaka KentaroTeikei Cup Shun-ei Preliminary　as Black↓20
October 9, 2025Nakahama KonosukeTeikei Cup Shun-ei Preliminary Round 1　Colors unknown↑13
September 18, 2025Tanaka KentaroHoninbo Preliminary B　as White↑12
August 21, 2025Kiyonari TetsuyaOza Preliminary B　as White↑24
July 30, 2025Tanaka KoyuMeijin Preliminary A　as White↓6
June 12, 2025Sada AtsushiMeijin Preliminary B　as Black↑30
March 19, 2025Kim PyonjunJudan Preliminary B　as Black↑11
February 6, 2025Konishi YoshiakiraKisei First Tournament Preliminary Round 2　Colors unknown↓9
December 26, 2024Katayama YasuoKisei First Tournament Preliminary Round 1　Colors unknown↑8
December 11, 2024Okawa TakuyaShinjin-O Preliminary　as Black↓11
December 4, 2024Tsuji ShigehitoTeikei Cup Shun-ei Preliminary　as Black↓9
November 20, 2024Ha YoungilTengen Preliminary A　as Black↓8
November 7, 2024Ikawa RyougoTeikei Cup Shun-ei Preliminary Round 2　Colors unknown↑9
November 7, 2024Nishimura JinTeikei Cup Shun-ei Preliminary Round 1　Colors unknown↑18
August 21, 2024Aragaki ShunTengen Preliminary B　as Black↑12

Head-to-head

Up to 10 opponents, most-played first. Records are from Watanabe Yu'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
Tsuji Shigehito3-2.6001-21-0
Imamura Toshiya0-3.0000-20-1
Otake Yu1-2.3330-10-0
Ha Youngil0-3.0000-10-2
Nakane Naoyuki0-2.0000-00-0
Tanaka Koyu0-2.0000-10-1
Hara Masakazu1-1.5001-00-0
Seki Kotaro1-1.5001-10-0
Taniguchi Toru0-2.0000-10-0
Furuya Yutaka0-2.0000-10-1

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
20262-3.400
20255-3.625
20244-6.400
20235-9.357
20221-7.125
20216-7.462
20204-2.667
20191-5.167
20184-2.667
20173-7.300
20168-6.571
20150-2.000
Total43-59.422

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