Go Player Ratings

JAAbout ratings

Yu Zhengqi

Yu Zhengqi (余正麒) has a rating of 2210, ranked 7 of 452 in professional play. Their highest rating so far is 2315 (November 27, 2025).

Yu Zhengqi9 dan余正麒Kansai Ki-in
Rating2210
Rank7
1-year change↓77
Peak rating2315
Last 10456-246(1 by default)
2026 record
12-14
Record since 1927
456-246
Win rate
.650

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

Professional ratingsFind a player

Rating history — professional

37 gamesHigh 2315Low 2204
126 gamesHigh 2315Low 2184
236 gamesHigh 2315Low 2066
660 gamesHigh 2315Low 1520

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
September 11, 2026Yang DingxinNongshim Cup Match 3　as White—
September 3, 2026Hon AkiyoshiHoninbo Preliminary B　as Black↑5
August 27, 2026Motoki KatsuyaKisei League S　as White↓16
August 13, 2026Takao ShinjiKisei League S　as Black↑8
July 27, 2026Ida AtsushiMeijin League　as White↓21
July 23, 2026Fukuoka KotaroOza Round 3　as White↓15
July 16, 2026Motoki KatsuyaMeijin League　as Black↑17
July 9, 2026Takao ShinjiOza Round 2　as Black↑7
July 2, 2026Kyo KagenKisei League S　as Black↓16
June 18, 2026Iyama YutaKisei League S　as White↓14
June 4, 2026Kyo KagenMeijin League　as Black↑18
May 28, 2026Ichiriki RyoKisei League S　as White↑22
May 13, 2026Fujita AkihikoOza Round 1　as White↑8
April 30, 2026Murakawa DaisukeTengen Round 2　as Black↓23
April 16, 2026Shibano ToramaruMeijin League　as Black↓11
April 14, 2026Kyo KagenLG Cup Japan Preliminary　as White—
March 27, 2026Fukuoka KotaroChunlan Cup Japan Preliminary　as Black—
March 16, 2026Fukuoka KotaroMeijin League　as White↓20
March 15, 2026Iyama YutaNHK Cup Final　as White↓15
March 8, 2026Fukuoka KotaroNHK Cup Round 5　as White↑12

Head-to-head

Up to 10 opponents, most-played first. Records are from Yu Zhengqi'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
Iyama Yuta14-27.3424-127-14
Kyo Kagen11-27.2893-127-14
Ichiriki Ryo11-22.3336-114-9
Shibano Toramaru8-23.2583-113-10
Yamashita Keigo18-8.6925-410-4
Murakawa Daisuke20-4.8337-311-1
Takao Shinji16-4.8008-18-2
Shida Tatsuya14-5.7374-17-4
Ida Atsushi12-6.6675-27-4
Sada Atsushi12-5.7065-35-0
Kono Rin8-8.5001-36-5
Cho U10-6.6256-24-4
Motoki Katsuya10-4.7148-22-2
Fujita Akihiko8-4.6671-36-1
Seto Taiki9-3.7504-25-1
Hane Naoki8-3.7273-35-0
Sun Zhe8-3.7274-13-2
Imamura Toshiya10-01.0003-05-0
Anzai Nobuaki6-4.6004-12-3
Ko Iso5-4.5561-33-0
Yuki Satoshi6-3.6674-22-1
Fukuoka Kotaro3-5.3750-22-3
So Yokoku6-1.8571-05-1
Kobayashi Satoru5-2.7143-22-0
Fujisawa Rina5-2.7144-10-0
Kiyonari Tetsuya6-1.8573-12-0
Onishi Ryuhei2-4.3330-12-3
Sakai Hideyuki4-2.6673-01-1
Onishi Kenya5-01.0002-02-0
Seki Kotaro4-1.8003-01-1
Tsuneishi Takashi3-2.6001-01-1
Mimura Tomoyasu3-2.6002-00-1
Mutsuura Yuta3-2.6001-22-0
Cho Sonjin2-3.4001-11-1
Suzuki Shinji4-1.8003-00-0
Hirata Tomoya4-1.8001-02-0

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
202612-14.462
202535-14.714
202426-17.605
202336-20.643
202232-27.542
202146-19.708
202040-10.800
201922-19.537
201833-23.589
201740-18.690
201638-19.667
201538-19.667
201428-15.651
201320-7.741
20128-4.667
20111-01.000
20100-1.000
20091-01.000
Total456-246.650

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