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Kato Atsushi

Kato Atsushi (加藤充志) has a rating of 1782, ranked 92 of 452 in professional play. Their highest rating so far is 1901 (June 3, 2010).

Kato Atsushi9 dan加藤充志Nihon Ki-in Tokyo
Rating1782
Rank92
1-year change↓2
Peak rating1901
Last 10352-285(1 lost by default)
2026 record
8-6
Record since 1927
352-285
Win rate
.553

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 1817Low 1781
63 gamesHigh 1822Low 1729
118 gamesHigh 1822Low 1728
449 gamesHigh 1901Low 1656

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 3, 2026Iguchi ToyohideSGW Cup Chuyo Preliminary Round 1　Colors unknown↓19
July 23, 2026Lee IshuTengen　Colors unknown↑16
July 6, 2026Fujisawa RinaGosei　Colors unknown↓10
June 15, 2026Yokotsuka RikiJudan Preliminary A　as White↓7
June 8, 2026Yo ChitoHoninbo　Colors unknown↓16
June 1, 2026Kazama JunTengen　Colors unknown↑12
May 14, 2026Mimura TomoyasuGosei　Colors unknown↑20
April 6, 2026Rin KaihoTengen　Colors unknown↑1
March 30, 2026Kudo NorioGosei　Colors unknown↑3
March 16, 2026Miyatani FugaMeijin　Colors unknown↓25
March 9, 2026Iguchi ToyohideTengen Preliminary C　as White↑15
March 2, 2026Ando KazushigeGosei Preliminary C　as Black↑10
January 22, 2026Lee IshuKisei First Tournament Preliminary Round 1　Colors unknown↓18
January 15, 2026Xie YiminMeijin　Colors unknown↑15
December 15, 2025So YokokuOza　Colors unknown↓13
November 20, 2025Kono MitsukiOza　Colors unknown↑14
September 15, 2025Sakai YukiHoninbo　Colors unknown↓3
September 11, 2025O RisseiTengen　Colors unknown↓13
August 25, 2025Fukuoka KotaroJudan Preliminary A Final　as Black↓3
August 18, 2025Shuto ShunSGW Cup Chuyo Preliminary Round 2　as White↓19

Head-to-head

Up to 10 opponents, most-played first. Records are from Kato 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
Cho Chikun10-8.5563-34-2
Takemiya Masaki3-6.3330-21-2
Mimura Tomoyasu2-7.2221-10-3
Kobayashi Koichi4-5.4442-12-3
Ryu Shikun5-4.5563-31-0
Hane Naoki4-4.5001-33-1
O Rissei3-5.3752-20-1
So Yokoku4-4.5002-00-0
Cho Riyu3-5.3750-12-2
O Meien1-7.1251-20-2
Kim Sujun3-5.3750-10-1
Takao Shinji2-5.2860-01-4
Ishida Yoshio5-2.7141-23-0
Rin Kaiho4-3.5710-11-1
Kono Rin4-3.5711-02-2
Cho Sonjin1-6.1431-40-2
Michael Redmond5-2.7141-00-1
Anzai Nobuaki2-4.3330-00-1
Yamada Takuji3-3.5000-00-0
Yamashita Keigo1-5.1671-10-3
Akiyama Jiro2-3.4001-20-1
Yoda Norimoto2-3.4001-11-1
Aoki Shinichi4-1.8000-01-0
Ko Mosei3-2.6000-00-0
Sakai Maki3-2.6000-11-0
Yo Kagen4-1.8000-00-0
Yo Chito2-3.4001-00-0
Morita Michihiro4-1.8001-10-0
Rin Kanketsu3-2.6002-21-0
Iyama Yuta2-3.4001-21-0
Suzuki Shinji1-4.2000-00-0
Kanazawa Hideo3-2.6000-00-0
Yuki Satoshi2-3.4001-21-1
Nakaonoda Tomomi4-1.8001-10-0

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
20268-6.571
202510-9.526
202417-9.654
202315-11.577
202210-13.435
202119-9.679
202011-9.550
201912-9.571
201814-14.500
201720-13.606
201615-12.556
20157-9.438
20148-7.533
20132-9.182
201217-10.630
201116-15.516
20105-9.357
200911-7.611
20089-10.474
20077-5.583
200614-12.538
200525-12.676
200421-11.656
200314-9.609
20029-12.429
20019-3.750
20001-4.200
19992-3.400
19981-4.200
19971-5.167
19962-4.333
19952-2.500
19941-2.333
19939-1.900
19923-5.375
19914-1.800
19901-01.000
Total352-285.553

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