Tsukada Chiharu

Tsukada Chiharu (塚田千春) has a rating of 1435, ranked 315 of 452 in professional play. Their highest rating so far is 1523 (June 29, 2020).

Tsukada Chiharu2 dan塚田千春Nihon Ki-in Kansai HQ
Rating1435
Rank315
1-year change↑62
Peak rating1523
Last 10WinLossLossLossWinLossWinLossLossLoss47-76
2026 record
7-11
Record since 1927
47-76
Win rate
.382

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

Rating history — professional

19 gamesHigh 1452Low 1381
61 gamesHigh 1452Low 1360
97 gamesHigh 1469Low 1343
119 gamesHigh 1523Low 1343

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 1515Low 1471
24 gamesHigh 1515Low 1428
48 gamesHigh 1515Low 1388
57 gamesHigh 1515Low 1388

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: 1471 (#60)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 27, 2026Sekiyama HonokaWomen's Kisei Colors unknownLoss↓19
August 10, 2026Kato ChieHiroshima Aluminum Cup Wakagoi Preliminary Round 1 Colors unknownLoss↓5
July 23, 2026Utani ShuntaTengen Colors unknownLoss↓13
June 25, 2026Furuya MasaoTengen Colors unknownWin↑14
May 25, 2026Muramoto WataruMeijin Colors unknownLoss↓2
May 7, 2026Yanagawa HiromasaTengen Colors unknownWin↑13
April 30, 2026Sakamoto YasuoOza Colors unknownLoss↓18
April 23, 2026Takeshita RyoyaGlobis Cup Japan Preliminary Round 1 as WhiteLoss
April 20, 2026Muramoto WataruJudan Colors unknownLoss↓2
April 16, 2026Ishida AtsushiMeijin Colors unknownWin↑25
April 9, 2026Ikemoto RyotaHoninbo Colors unknownLoss↓3
April 2, 2026Oda TeppeiTengen Colors unknownWin↑9
March 26, 2026Enda HidekiGosei Colors unknownLoss↓12
March 12, 2026Sasaki TsuyoshiJudan Colors unknownWin↑17
February 26, 2026Yasuda AkikaGosei Preliminary C as WhiteWin↑8
February 5, 2026Tamura ChiakiSenko Cup Women's Strongest Player Preliminary Semifinal Colors unknownLoss↓16
January 26, 2026Bian WenkaiKisei First Tournament Preliminary Round 1 Colors unknownLoss↓9
January 19, 2026Nakano ShoyaMeijin Colors unknownWin↑25
December 22, 2025Tatsumi AkaneWomen's Honinbo Preliminary Final as BlackLoss↓10
December 18, 2025Tanemura SayuriMeijin Colors unknownWin↑7

Head-to-head

Up to 10 opponents, most-played first. Records are from Tsukada Chiharu'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
Omori Ran3-2.6001-00-0
Mito Yukari1-4.2000-00-0
Tanaka Chieko4-1.8000-00-0
Muramoto Wataru0-4.0000-00-0
Honda Mariko4-01.0000-00-0
Kato Chie0-4.0000-00-2
Iwata Saeka0-4.0000-00-1
Kuwamoto Shinpei2-2.5000-00-0
Yasuda Akika3-01.0000-01-0
Tatsumi Akane0-3.0000-20-0

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
20267-11.389
202512-17.414
202412-19.387
202317-16.515
202211-17.393
202110-20.333
20203-8.273
Total47-76.382

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