Go Player Ratings

JAAbout ratings

Mizuno Hiromi

Mizuno Hiromi (水野弘美) has a rating of 1311, ranked 400 of 452 in professional play. Their highest rating so far is 1451 (December 24, 2015).

Mizuno Hiromi5 dan水野弘美Kansai Ki-in
Rating1311
Rank400
1-year change↓16
Peak rating1451
Last 101-18
2026 record
0-4
Record since 1927
1-18
Win rate
.053

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

Professional ratingsFind a player

Rating history — professional

3 gamesHigh 1324Low 1311
5 gamesHigh 1357Low 1311
7 gamesHigh 1378Low 1311
15 gamesHigh 1451Low 1311

The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.

Rating history in the women's tournaments pool (for reference)

3 gamesHigh 1335Low 1320
12 gamesHigh 1377Low 1320
26 gamesHigh 1463Low 1320
75 gamesHigh 1463Low 1320

The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.

Ratings in other pools

Ratings for general play and for women's tournaments are calculated independently and do not affect each other.

  • Women's tournaments: 1332 (#76)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 16, 2026Okuma YutoTengen Preliminary B　as Black↓9
August 20, 2026Yokota ShigeakiOza Preliminary B　as Black↓4
February 18, 2026Iwata SaekaSenko Cup Women's Strongest Player Preliminary Semifinal　Colors unknown↓3
January 7, 2026Abe YoshikiKisei First Tournament Preliminary Round 1　Colors unknown↓3
December 4, 2025Yasuda AkikaSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↑16
October 29, 2025Takayamabe FumiWomen's Honinbo Preliminary　Colors unknown↓10
June 23, 2025Yoshida MikaWomen's Meijin　Colors unknown↓4
February 27, 2025Tanaka ChiekoSenko Cup Women's Strongest Player Preliminary Semifinal　Colors unknown↓23
January 9, 2025Tanaka ChiekoKisei First Tournament Preliminary Round 1　Colors unknown↓29
December 12, 2024Kim HyunjongSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↑22
December 6, 2024Taguchi MiseiWomen's Honinbo Preliminary　Colors unknown↓7
November 14, 2024O KeiiWomen's Honinbo Preliminary Round 1　Colors unknown↓4
October 23, 2024Sakakibara FumikoWomen's Tachiaoi Cup Preliminary　Colors unknown↓13
July 25, 2024Mito YukariWomen's Meijin　Colors unknown↓15
January 17, 2024Chin KaeiKisei First Tournament Preliminary Round 1　Colors unknown↓6
November 30, 2023Yoshida MikaWomen's Tachiaoi Cup Preliminary　Colors unknown↓5
November 23, 2023Honda MarikoSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↓10
July 13, 2023Suzukawa NatsumiWomen's Meijin　Colors unknown↓15
March 8, 2023Taguchi MiseiSenko Cup Women's Strongest Player Preliminary Semifinal　Colors unknown↓12
December 7, 2022Yoshida ShojiKisei First Tournament Preliminary Round 1　Colors unknown↓15

Head-to-head

Up to 10 opponents, most-played first. Records are from Mizuno Hiromi'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
Asano Yasuko4-2.6670-00-0
Tsukuda Akiko0-6.0000-10-2
Tanaka Chieko2-4.3331-00-1
Sakakibara Fumiko3-3.5000-00-0
Yoshida Mika0-5.0000-10-2
Kitani Toshimi2-3.4000-11-1
Tatsumi Akane0-4.0000-00-0
Miyamoto Chiharu3-1.7500-00-0
Mito Yukari0-4.0000-10-1
Konishi Kazuko1-3.2500-00-1

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
20260-4.000
20251-4.200
20241-5.167
20230-4.000
20223-8.273
20215-4.556
20202-3.400
20192-3.400
20183-7.300
20172-5.286
20162-5.286
20150-3.000
20142-1.667
20120-1.000
20111-2.333
20071-2.333
20061-3.250
20051-4.200
20042-4.333
20035-5.500
20021-1.500
19953-3.500
19941-2.333
19930-2.000
19922-1.667
19912-2.500
19901-1.500
19894-5.444
19883-3.500
Total1-18.053

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