Go Player Ratings

JAAbout ratings

Okada Yumiko

Okada Yumiko (岡田結美子) has a rating of 1280, ranked 411 of 452 in professional play. Their highest rating so far is 1477 (March 31, 2016).

Okada Yumiko6 dan岡田結美子Nihon Ki-in Tokyo
Rating1280
Rank411
1-year change↓10
Peak rating1477
Last 1089-192
2026 record
0-10
Record since 1927
89-192
Win rate
.317

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

Professional ratingsFind a player

Rating history — professional

9 gamesHigh 1313Low 1280
36 gamesHigh 1352Low 1280
62 gamesHigh 1352Low 1280
211 gamesHigh 1477Low 1269

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)

6 gamesHigh 1452Low 1419
25 gamesHigh 1535Low 1419
52 gamesHigh 1598Low 1419
157 gamesHigh 1652Low 1419

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: 1419 (#68)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 27, 2026Kohara NonoWomen's Kisei　Colors unknown↓12
July 30, 2026Mukai ChiakiSGW Cup Chuyo Preliminary Round 1　Colors unknown↓2
May 25, 2026Ogaki YusakuOza　Colors unknown↓2
March 19, 2026Takemiya MasakiHoninbo　Colors unknown↓5
March 2, 2026Rin ShienTengen　Colors unknown↓2
February 23, 2026Cho KosumiGosei　Colors unknown↓13
February 16, 2026Yanagihara SakiSenko Cup Women's Strongest Player Preliminary　as White↓4
January 29, 2026Ito MasashiJudan　Colors unknown↓2
January 19, 2026Yamada ShinjiKisei First Tournament Preliminary Round 1　Colors unknown↓6
January 8, 2026Kin EnWomen's Honinbo Preliminary Final　as Black↓17
December 15, 2025Miura TaroMeijin　Colors unknown±0
December 4, 2025Kanno NaomiSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↑9
November 10, 2025Shibano RyunosukeMeijin　Colors unknown↑23
November 6, 2025Kato TomokoTeikei Cup Women's Legend Round 1　as Black↓9
September 25, 2025Koda AkikoWomen's Honinbo Preliminary Round 1　Colors unknown↑13
September 11, 2025Aoki ShinichiSGW Cup Chuyo Preliminary Round 1　as White↓5
August 11, 2025Miyamoto ChiharuWomen's Kisei　Colors unknown↑11
August 11, 2025Koyama TerumiWomen's Kisei　Colors unknown↓8
July 21, 2025Suzuki IsaoRyusei　Colors unknown↓12
July 7, 2025Takemiya MasakiOza　Colors unknown↓5

Head-to-head

Up to 10 opponents, most-played first. Records are from Okada Yumiko'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
Aoki Kikuyo4-12.2501-41-3
Nakazawa Ayako4-9.3081-31-2
Makihata Taeko7-5.5832-01-0
Chinen Kaori4-8.3332-20-3
Yashiro Kumiko5-7.4171-22-2
Yoshida Mika4-7.3643-11-5
Kato Keiko1-10.0910-20-2
Kato Tomoko1-8.1110-11-4
Kobayashi Chizu4-5.4440-21-2
Koyama Terumi3-5.3751-21-0
Kanno Naomi4-4.5000-11-1
Kuwabara Yoko1-7.1250-20-1
Miyazaki Shimako4-4.5002-11-1
Tanimiya Ayako8-01.0001-00-0
Shoji Kazuko7-01.0000-00-0
Hosaka Mayu4-3.5711-10-0
Mukai Chiaki1-6.1430-00-1
Koda Akiko7-01.0000-01-0
Kin En4-2.6671-11-0
Umezawa Yukari3-3.5002-21-1
Shinkai Hiroko3-3.5001-10-1
Okuda Aya0-6.0000-00-1
Yoshihara Yukari2-3.4000-00-0
Sugiuchi Kazuko2-3.4000-21-0
Xie Yimin2-3.4001-10-0
Suzuki Ayumi1-4.2000-00-1
Konishi Kazuko2-3.4000-32-0
Sakakibara Fumiko3-2.6001-11-1

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
20260-10.000
20256-15.286
20247-18.280
20237-17.292
202210-16.385
202112-14.462
20207-12.368
20197-16.304
201812-15.444
20179-20.310
20168-16.333
201511-13.458
20142-7.222
20136-8.429
201210-9.526
20113-9.250
20101-3.250
20092-2.500
20081-2.333
20071-5.167
20067-12.368
200510-13.435
200416-15.516
200316-19.457
200215-11.577
20012-4.333
20005-4.556
19993-4.429
19983-3.500
19970-4.000
19962-3.400
19955-4.556
19940-2.000
19931-3.250
19922-4.333
19910-1.000
19905-4.556
19891-2.333
Total89-192.317

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