Go Player Ratings

JAAbout ratings

Nakazawa Ayako

Nakazawa Ayako (中澤彩子) has a rating of 1229, ranked 420 of 452 in professional play. Their highest rating so far is 1452 (September 10, 2009).

Nakazawa Ayako5 dan中澤彩子Nihon Ki-in TokyoAlso known as: 池田彩子
Rating1229
Rank420
1-year change↓37
Peak rating1452
Last 1070-190
2026 record
0-7
Record since 1927
70-190
Win rate
.269

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

Professional ratingsFind a player

Rating history — professional

7 gamesHigh 1260Low 1229
32 gamesHigh 1317Low 1229
58 gamesHigh 1317Low 1229
188 gamesHigh 1452Low 1223

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 1481Low 1466
20 gamesHigh 1539Low 1466
42 gamesHigh 1594Low 1466
126 gamesHigh 1656Low 1466

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: 1472 (#59)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
May 11, 2026Aoki KikuyoOza　Colors unknown↓7
April 30, 2026Saga ShuntaroHoninbo　Colors unknown↓5
March 19, 2026Sakai MakiGosei　Colors unknown↓5
March 12, 2026Kataoka SatoshiTengen　Colors unknown↓3
February 5, 2026Aoki ShinichiJudan　Colors unknown↓4
January 29, 2026Yoshihara YukariKisei First Tournament Round 1　as White↓8
January 22, 2026Yashiro KumikoSenko Cup Women's Strongest Player Preliminary Semifinal　Colors unknown↓9
December 8, 2025Goto ManaSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↑14
November 20, 2025Omori YasushiMeijin　Colors unknown↓5
October 9, 2025Nakajima MiekoWomen's Honinbo Preliminary Round 1　Colors unknown↓20
September 15, 2025Komatsu HidekiSGW Cup Chuyo Preliminary Round 1　as White↓2
September 4, 2025Kato KeikoWomen's Kisei　Colors unknown↓13
August 14, 2025Tanimiya AyakoWomen's Kisei　Colors unknown↑3
August 14, 2025Kanno NaomiWomen's Kisei　Colors unknown↑8
July 10, 2025Sotoyanagi SebunTengen　Colors unknown↓2
July 7, 2025Jo BunenRyusei　Colors unknown↓5
June 19, 2025Yanagihara SakiWomen's Meijin　Colors unknown↓11
June 2, 2025Ko MoseiOza　Colors unknown↓14
May 22, 2025Ishida YoshioHoninbo　Colors unknown↓6
April 17, 2025Suzuki YoshimichiGosei　Colors unknown↓4

Head-to-head

Up to 10 opponents, most-played first. Records are from Nakazawa Ayako'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 Kikuyo2-14.1251-31-3
Okada Yumiko9-4.6922-13-1
Kato Tomoko9-4.6925-11-2
Chinen Kaori4-6.4001-02-4
Kato Keiko2-8.2000-00-2
Kobayashi Izumi3-7.3001-21-1
Inori Yoko6-3.6674-10-1
Koyama Terumi2-6.2500-12-2
Hara Sachiko3-4.4291-11-1
Sugiuchi Kazuko4-3.5710-12-2
Yoshida Mika2-5.2861-31-2
Mimura Kaori3-3.5000-10-0
Suzuki Ayumi2-4.3331-10-1
Komatsu Hideko4-2.6670-11-1
Kobayashi Chizu4-2.6672-12-0
Yashiro Kumiko3-3.5000-01-1
Nakayama Kaoru5-01.0000-01-0
Yoshihara Yukari0-5.0000-00-1
Kibe Natsuki3-2.6000-00-0
Ogawa Tomoko2-3.4000-10-1
Nakajima Mieko0-5.0000-00-0
Sakakibara Fumiko4-1.8002-01-1
Tanimiya Ayako5-01.0000-00-0

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.

YearRecordWin rate
20260-7.000
20255-15.250
20247-14.333
20238-16.333
20225-16.238
20219-16.360
20205-14.263
20198-13.381
20189-18.333
20174-18.182
201612-15.444
20155-16.238
20145-6.455
20136-7.462
20127-8.467
20114-6.400
20100-2.000
20091-1.500
20071-3.250
20061-1.500
20052-2.500
20040-4.000
200314-15.483
200211-9.550
20015-3.625
20004-5.444
19992-4.333
19988-5.615
19975-6.455
19968-7.533
19954-2.667
19945-3.625
19932-01.000
19927-8.467
19916-14.300
199011-4.733
19891-2.333
19880-6.000
Total70-190.269

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