Go Player Ratings

JAAbout ratings

Chen Boshao

Chen Boshao (陳柏劭) has a rating of 1635, ranked 175 of 452 in professional play. Their highest rating so far is 1712 (March 12, 2026).

Chen Boshao2 dan陳柏劭Nihon Ki-in Tokyo
Rating1635
Rank175
1-year change↑29
Peak rating1712
Last 1037-28
2026 record
11-9
Record since 1927
37-28
Win rate
.569

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

Professional ratingsFind a player

Rating history — professional

24 gamesHigh 1712Low 1595
65 gamesHigh 1712Low 1504
65 gamesHigh 1712Low 1504
65 gamesHigh 1712Low 1504

The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 20, 2026Seki RyosukeHiroshima Aluminum Cup Wakagoi Preliminary Round 1　Colors unknown↓15
July 13, 2026Uchida ShuheiHoninbo　Colors unknown↓7
June 25, 2026Koyama TerumiOza　Colors unknown↓20
June 18, 2026Inaba TakahiroGosei　Colors unknown↓16
June 11, 2026Goto HajimuShinjin-O Main Tournament Round 2　Colors unknown↓16
May 14, 2026Shibusawa MachikoOza　Colors unknown↑1
April 30, 2026Kanda EiGosei　Colors unknown↑7
April 20, 2026Kurotaki MasanoriHoninbo　Colors unknown↑11
April 13, 2026Xiao YuyangJudan　Colors unknown↓7
April 6, 2026Nakajima MiekoGosei　Colors unknown↑3
March 19, 2026Tsuneishi TakashiKisei First Tournament Preliminary Quarterfinal　Colors unknown↓16
March 12, 2026Cho ChikunJudan Preliminary C　as White↑23
March 5, 2026Otani KensukeShinjin-O Round 1　as Black↑13
February 26, 2026Kobayashi KoichiGosei Preliminary C　as Black↑17
February 16, 2026Takekiyo IsamuKisei First Tournament Preliminary Round 2　Colors unknown↑12
February 9, 2026Nakajima MiekoJudan　Colors unknown↑4
February 2, 2026Shiga TsukasaShinjin-O Preliminary Final　Colors unknown↑15
January 26, 2026Shigekawa AkashiMeijin　Colors unknown↓16
January 19, 2026Takanashi SeikenKisei First Tournament Round 1　as Black↑16
January 8, 2026Fujisawa RinaTengen Preliminary A Final　as White↓5

Head-to-head

Up to 10 opponents, most-played first. Records are from Chen Boshao'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
Kanda Ei3-01.0000-01-0
Yanagihara Saki1-1.5001-00-1
Mitsunaga Junzo1-1.5000-00-0
Tsuneishi Takashi0-2.0000-00-0
Muramatsu Ryuichi2-01.0000-00-0
Ueda Takashi2-01.0000-00-0
Ueno Risa1-1.5000-01-0
Nakajima Mieko2-01.0000-00-0
Ohashi Hirofumi0-2.0000-00-0
Cho Chikun1-1.5000-01-0

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
202611-9.550
202516-11.593
202410-8.556
Total37-28.569

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