Go Player Ratings

JAAbout ratings

Jo Bunen

Jo Bunen (徐文燕) has a rating of 1713, ranked 127 of 452 in professional play. Their highest rating so far is 1713 (September 3, 2026).

Jo Bunen2 dan徐文燕Nihon Ki-in Tokyo
Rating1713
Rank127
1-year change↑105
Peak rating1713
Last 1072-64
2026 record
27-9
Record since 1927
72-64
Win rate
.529

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

Professional ratingsFind a player

Rating history — professional

28 gamesHigh 1713Low 1562
74 gamesHigh 1713Low 1519
127 gamesHigh 1713Low 1480
128 gamesHigh 1713Low 1480

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)

14 gamesHigh 1837Low 1734
43 gamesHigh 1837Low 1637
65 gamesHigh 1837Low 1523
68 gamesHigh 1837Low 1522

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: 1823 (#9)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 10, 2026Nyu EikoWomen's Kisei Preliminary A　as Black↓13
September 10, 2026Cho KoharuWomen's Kisei Preliminary B　as White↑4
September 3, 2026Ueno AsamiHiroshima Aluminum Cup Wakagoi Preliminary Semifinal　Colors unknown↑28
September 3, 2026Takayama NonokaHiroshima Aluminum Cup Wakagoi Preliminary Final　Colors unknown↑3
September 3, 2026Cho KosumiHiroshima Aluminum Cup Wakagoi Preliminary Round 1　Colors unknown↑5
August 27, 2026Hosaka MayuWomen's Kisei　Colors unknown↑2
August 27, 2026Cho ChienWomen's Kisei　Colors unknown↑8
August 13, 2026Ogaki YusakuOza　Colors unknown↓13
July 26, 2026Ueno AsamiSenko Cup Women's Strongest Player Final　as Black↓4
July 24, 2026Fujisawa RinaSenko Cup Women's Strongest Player Round 3　as Black↑26
July 2, 2026Mukai ChiakiTengen　Colors unknown↑19
June 25, 2026Ishigure IkuroHoninbo　Colors unknown↓20
June 18, 2026Kono TakashiOza　Colors unknown↑8
June 11, 2026Hoshiai ShihoSenko Cup Women's Strongest Player Round 2　as White↑21
June 8, 2026Cho RiyuHoninbo　Colors unknown↑24
June 4, 2026Sun ZheJudan　Colors unknown↓4
June 1, 2026Mizuma ToshifumiOza　Colors unknown↑8
May 28, 2026Yanai KazumaTengen　Colors unknown↑15
May 25, 2026Takemiya MasakiGosei　Colors unknown↓20
May 21, 2026Takao MariSenko Cup Women's Strongest Player Round 1　as White↑17

Head-to-head

Up to 10 opponents, most-played first. Records are from Jo Bunen'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
Cho Chien4-2.6670-01-1
Hoshiai Shiho3-3.5001-01-0
Mukai Chiaki2-4.3331-10-0
Ueno Asami1-4.2000-20-1
Cho Koharu4-01.0000-01-0
Nakazawa Ayako4-01.0000-00-0
Yoshihara Yukari3-1.7500-00-0
Yanagihara Saki2-2.5000-11-1
Nyu Eiko0-4.0000-10-0
Hosaka Mayu4-01.0000-00-0

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
202627-9.750
202520-16.556
202418-16.529
202321-22.488
202221-19.525
20217-8.467
Total72-64.529

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