Go Player Ratings

JAAbout ratings

Tsukuda Akiko

Tsukuda Akiko (佃亜紀子) has a rating of 1420, ranked 333 of 452 in professional play. Their highest rating so far is 1545 (November 19, 2009).

Tsukuda Akiko6 dan佃亜紀子Nihon Ki-in Kansai HQ
Rating1420
Rank333
1-year change↑35
Peak rating1545
Last 10123-180
2026 record
7-8
Record since 1927
123-180
Win rate
.406

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

Professional ratingsFind a player

Rating history — professional

16 gamesHigh 1439Low 1351
48 gamesHigh 1443Low 1351
81 gamesHigh 1443Low 1351
240 gamesHigh 1545Low 1317

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)

7 gamesHigh 1644Low 1624
31 gamesHigh 1690Low 1616
63 gamesHigh 1711Low 1616
187 gamesHigh 1711Low 1525

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: 1644 (#24)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 17, 2026Aoba KaoriWomen's Kisei Preliminary A　as Black↑12
August 24, 2026Kurotaki MasakiSGW Cup Chuyo Preliminary Round 1　Colors unknown↓12
August 10, 2026Hane NaokiHoninbo　Colors unknown↓2
July 23, 2026Ohashi NaruyaOza　Colors unknown↓5
June 4, 2026Nakano ShoyaHoninbo　Colors unknown↑23
May 11, 2026Enda HidekiOza　Colors unknown↑22
April 23, 2026Ishii KunioHoninbo　Colors unknown↑23
April 13, 2026Komatsu DaikiGosei　Colors unknown↓6
March 30, 2026Kirimoto KazuoHoninbo　Colors unknown↑6
March 16, 2026Omori RanGosei Preliminary C　as Black↑20
March 12, 2026Hane AyakaJudan Preliminary C　as White↓13
February 16, 2026Iwamaru TairaTengen　Colors unknown↓6
January 29, 2026Kori ToshioJudan　Colors unknown↑15
January 22, 2026O KeiiSenko Cup Women's Strongest Player Preliminary Semifinal　Colors unknown↓12
January 15, 2026Hirata ShuKisei First Tournament Preliminary Round 1　Colors unknown↓11
December 11, 2025Nishiyama ShizukaSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↑14
December 4, 2025Kobayashi IzumiTeikei Cup Women's Legend Round 2　as White↓12
November 20, 2025Osawa NarumiTeikei Cup Women's Legend Round 1　as Black↑18
November 13, 2025Takei TakashiMeijin　Colors unknown↓6
October 30, 2025O KeiiTengen Preliminary A　as White↓9

Head-to-head

Up to 10 opponents, most-played first. Records are from Tsukuda Akiko'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
Mito Yukari14-2.8750-00-0
O Keii3-11.2140-20-3
Konishi Kazuko3-6.3330-21-1
Tanaka Chieko9-01.0000-00-0
Kim Hyunjong6-2.7500-00-0
Izawa Akino4-4.5000-13-0
Kori Toshio4-4.5000-00-0
Sasaki Tsuyoshi2-6.2500-00-0
Sakakibara Fumiko6-2.7501-10-0
Kato Chie2-6.2500-20-0
Yamamoto Kentaro5-3.6250-00-0
Chinen Kaori3-4.4292-21-1
Araki Issei2-5.2860-00-0
Takabayashi Masahiro5-2.7140-00-0
Yoshida Mika3-4.4292-20-1
Omori Ran5-2.7141-01-0
Miyamoto Chiharu7-01.0000-00-0
Sakamoto Yasuo3-4.4290-00-0
Iwamaru Taira1-6.1430-00-0
Komatsu Daiki1-6.1430-00-0
Utani Shunta1-6.1430-00-0
Takagi Junpei4-3.5710-00-0
Mizuno Hiromi6-01.0002-01-0
Yamada Shiho1-5.1670-00-0
Enda Yoichi3-3.5000-00-0
Tajima Shingo1-5.1670-00-0
Enda Hideki4-2.6670-00-0
Nyu Eiko0-6.0000-20-0
Kirimoto Kazuo6-01.0000-00-0
Yanaka Katsunori0-6.0000-00-0
Tanemura Sayuri5-1.8330-00-0
Sano Takatsugu4-2.6670-00-0
Tobita Saki2-4.3330-01-0
Taguchi Misei4-1.8001-02-0
Ohashi Naruya1-4.2000-00-0
Aoki Kikuyo3-2.6000-13-1
Xie Yimin0-5.0000-20-2
Takao Mari2-3.4000-00-0
Ishii Kunio2-3.4000-00-0
Furuya Masao4-1.8000-00-0
Kitano Ryo1-4.2000-00-0
Honda Mariko4-1.8000-00-0
Kitani Toshimi5-01.0001-00-0
Matsumoto Nayoko5-01.0000-00-0
Tamura Chiaki4-1.8001-01-0

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
20267-8.467
202510-20.333
202414-15.483
202318-15.545
202213-13.500
202121-19.525
202015-14.517
201912-16.429
201814-17.452
201713-18.419
201610-17.370
201511-11.500
20142-5.286
20139-7.563
20129-9.500
20118-8.500
20100-2.000
20092-1.667
20080-3.000
20071-4.200
200615-5.750
200518-13.581
200415-13.536
200314-13.518
20029-8.529
20014-4.500
20004-4.500
19990-1.000
19982-1.667
19970-1.000
19951-1.500
19946-2.750
19931-01.000
Total123-180.406

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