Go Player Ratings

JAAbout ratings

Mukai Chiaki

Mukai Chiaki (向井千瑛) has a rating of 1727, ranked 117 of 452 in professional play. Their highest rating so far is 1814 (July 24, 2025).

Mukai Chiaki6 dan向井千瑛Nihon Ki-in Tokyo
Rating1727
Rank117
1-year change↓77
Peak rating1814
Last 10191-200
2026 record
16-9
Record since 1927
191-200
Win rate
.488

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 1793Low 1724
57 gamesHigh 1814Low 1674
103 gamesHigh 1814Low 1674
365 gamesHigh 1814Low 1487

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)

13 gamesHigh 2008Low 1890
55 gamesHigh 2008Low 1843
99 gamesHigh 2008Low 1794
340 gamesHigh 2008Low 1552

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: 1977 (#4)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 6, 2026Uchida ShuheiHoninbo　Colors unknown↓11
July 30, 2026Takei TakashiSGW Cup Chuyo Preliminary Semifinal　Colors unknown↑11
July 30, 2026Okada YumikoSGW Cup Chuyo Preliminary Round 1　Colors unknown↑2
July 24, 2026Ueno AsamiSenko Cup Women's Strongest Player Round 3　as White↓10
July 9, 2026Hoshiai ShihoWomen's Honinbo Round 4　as Black↓21
July 2, 2026Jo BunenTengen　Colors unknown↓19
June 25, 2026Kato KeikoWomen's Honinbo Round 3　as White↑4
June 18, 2026Ueno RisaSenko Cup Women's Strongest Player Round 2　as Black↑16
June 13, 2026Fujisawa RinaFumakilla Women's Go Brains Match Final　as White↑22
June 13, 2026Ueno RisaFumakilla Women's Go Brains Match Round 3　as White↑18
June 8, 2026Takemiya MasakiHoninbo　Colors unknown↑10
June 1, 2026Suzuki AyumiWomen's Honinbo Round 2　as White↑14
May 21, 2026Konishi KazukoSenko Cup Women's Strongest Player Round 1　as Black↑4
April 29, 2026Ueno AsamiFumakilla Women's Go Brains Match Round 2　as White↑27
April 29, 2026O KeiiFumakilla Women's Go Brains Match Round 1　as White↑8
April 27, 2026Fujisawa KazunariGosei　Colors unknown↓24
April 9, 2026Takao ShinjiMeijin　Colors unknown↓7
March 19, 2026Obata MinoriSenko Cup Women's Strongest Player Preliminary Final　Colors unknown↑3
March 9, 2026Suzuki YoshimichiGosei Preliminary C　as Black↑12
February 23, 2026Shiraishi YuichiKisei First Tournament Preliminary Round 2　Colors unknown↓25

Head-to-head

Up to 10 opponents, most-played first. Records are from Mukai Chiaki'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
Xie Yimin16-23.4109-74-14
Suzuki Ayumi8-15.3484-43-6
Kato Keiko13-6.6846-24-3
Ueno Asami2-15.1181-41-6
Okuda Aya11-4.7334-04-1
Fujisawa Rina4-11.2673-41-5
Hoshiai Shiho9-4.6922-21-1
Nyu Eiko6-5.5455-10-1
Yoshida Mika9-1.9005-13-0
Ueno Risa3-7.3001-32-4
Chinen Kaori5-4.5562-12-2
Koyama Terumi8-1.8892-04-0
Umezawa Yukari3-6.3331-32-3
Kobayashi Izumi6-3.6672-02-2
Ishii Akane4-4.5003-11-2
Aoki Kikuyo5-3.6253-20-1
Okada Yumiko6-1.8571-00-0
Mannami Nao4-3.5713-01-3
Kuwabara Yoko4-3.5710-21-1
Makihata Taeko5-1.8330-13-0
Jo Bunen4-2.6670-01-1
Kibe Natsuki4-2.6670-00-0
Kobayashi Koichi0-6.0000-20-1
Kato Tomoko6-01.0002-02-0
Suzuki Shinji1-5.1671-20-1
Cho Chien4-1.8000-10-0
Kono Takashi4-1.8000-01-0
Konishi Kazuko1-4.2001-10-2
Komatsu Hideko5-01.0000-01-0
Lee Ishu2-3.4000-00-0
Yashiro Kumiko4-1.8000-13-0

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
202616-9.640
202519-16.543
202428-14.667
202328-15.651
202230-20.600
202122-20.524
202025-13.658
201922-12.647
201824-21.533
201738-22.633
201620-20.500
201512-16.429
20149-17.346
201320-15.571
201217-18.486
201116-18.471
201016-11.593
20098-5.615
20088-16.333
200712-9.571
200614-9.609
200512-12.500
20044-8.333
Total191-200.488

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