Go Player Ratings

JAAbout ratings

Sada Atsushi

Sada Atsushi (佐田篤史) has a rating of 2111, ranked 11 of 452 in professional play. Their highest rating so far is 2120 (August 17, 2026).

Sada Atsushi7 dan佐田篤史Kansai Ki-in
Rating2111
Rank11
1-year change↑96
Peak rating2120
Last 10278-172
2026 record
15-10
Record since 1927
278-172
Win rate
.618

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 2120Low 1981
117 gamesHigh 2120Low 1930
215 gamesHigh 2120Low 1928
423 gamesHigh 2120Low 1495

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 27, 2026Ushinohama SatsuoOza Preliminary A　as Black↑1
August 21, 2026Iyama YutaGosei Title Match Best-of-five Game 5　as Black↓10
August 17, 2026Tsuruta KazushiHiroshima Aluminum Cup Wakagoi Preliminary Final　Colors unknown↑10
August 17, 2026Nakano ShoyaHiroshima Aluminum Cup Wakagoi Preliminary Semifinal　Colors unknown↑1
August 10, 2026Iyama YutaGosei Round 4　as Black↑24
August 6, 2026Hirose YuichiKisei League A　as Black↓18
July 27, 2026Otake YuKisei League A　as White↑17
July 21, 2026Iyama YutaGosei Round 3　as White↓9
July 10, 2026Iyama YutaGosei Round 2　as Black↓9
June 23, 2026Iyama YutaGosei Round 1　as White↑26
June 18, 2026Ida AtsushiKisei League A　as White↓17
May 24, 2026Onishi KenyaNHK Cup Round 1　as White↑7
May 14, 2026Yamashita KeigoKisei League A　as Black↑14
May 7, 2026Ichiriki RyoGosei Round 5　as Black↑28
April 23, 2026Sakai YukiKisei League A　as Black↓13
April 16, 2026Kyo KagenGosei Round 4　as White↑27
April 9, 2026Tanaka KoyuKansai Ki-in First Place Tournament Round 3　as White↑11
April 2, 2026Murakawa DaisukeGosei Round 3　as Black↑20
March 26, 2026Cho UKisei League A　as Black↑20
February 26, 2026Adachi ToshimasaOza Final Preliminary　as White↓17

Head-to-head

Up to 10 opponents, most-played first. Records are from Sada Atsushi'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
Yu Zhengqi5-12.2940-53-5
Iyama Yuta3-8.2732-41-3
Murakawa Daisuke5-5.5003-32-2
Kyo Kagen3-7.3002-51-2
U Boi5-5.5001-22-2
Ichiriki Ryo2-8.2001-31-4
Tanaka Koyu9-01.0003-05-0
Ida Atsushi4-5.4443-11-4
Shida Tatsuya5-3.6253-12-1
Koike Yoshihiro3-5.3751-22-1
Mutsuura Yuta3-5.3751-10-2
Tsuruta Kazushi4-4.5003-00-1
Seto Taiki3-5.3750-32-2
Hane Naoki2-5.2860-12-3
Motoki Katsuya2-5.2861-11-2
Otake Yu5-2.7141-14-1
Kono Rin4-3.5711-23-1
Imamura Toshiya2-4.3330-22-1
Fukuoka Kotaro5-1.8333-02-0
Adachi Toshimasa2-4.3331-31-1
Fujita Akihiko4-2.6671-21-0
Nishi Takenobu4-2.6673-10-0
Shibano Toramaru2-4.3330-42-0
Koyama Kuya5-1.8332-02-1
Tsuji Shigehito4-1.8000-04-1
Seki Kotaro2-3.4001-21-1
Onishi Ryuhei3-2.6002-11-0
Fujii Shuya5-01.0001-04-0
Yamashita Keigo1-4.2001-20-2
Fujisawa Rina5-01.0000-04-0

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
202615-10.600
202521-13.618
202431-16.660
202326-24.520
202233-19.635
202140-21.656
202027-16.628
201915-8.652
201815-11.577
201724-7.774
201615-12.556
201513-9.591
20142-4.333
20131-2.333
Total278-172.618

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