Katayama Toko

Katayama Toko (片山陶子) has a rating of 1425, ranked 326 of 452 in professional play. Their highest rating so far is 1490 (May 26, 2026).

Katayama Toko1 dan片山陶子Nihon Ki-in Kansai HQ

Rating1425

Rank326

1-year change↓75

Peak rating1490

Last 60-5

2026 record: 0-6
Record since 1927: 0-5
Win rate: .000

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

Professional ratings Find a player

Rating history — professional

1 year3 years5 yearsAll

5 gamesHigh 1490Low 1425

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: 1477 (#57)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
Date	Opponent and tournament	Result	Change
August 17, 2026	Asano YasukoWomen's Kisei　Colors unknown	Loss	↓23
July 30, 2026	Yanagihara SakiHiroshima Aluminum Cup Wakagoi Preliminary Round 1　Colors unknown	Loss	↓6
May 27, 2026	Sekiyama HonokaIwamoto Kaoru Memorial Masuda Cup Main Tournament　Colors unknown	Loss	↓23
May 27, 2026	Shinoda YuyaIwamoto Kaoru Memorial Masuda Cup Main Tournament　Colors unknown	Loss	↓16
May 26, 2026	Obata MinoriIwamoto Kaoru Memorial Masuda Cup Main Tournament　Colors unknown	Loss	↓19
May 26, 2026	Yanagihara SakiIwamoto Kaoru Memorial Masuda Cup Main Tournament　Colors unknown	Loss	↓10

Head-to-head

Up to 10 opponents, most-played first. Records are from Katayama Toko's point of view; jigo and no-result games are not counted as wins or losses. Only games from 1927 onward are included.
Opponent	Total	As Black	As White
Yanagihara Saki	0-2.000	0-0	0-0
Asano Yasuko	0-1.000	0-0	0-0
Shinoda Yuya	0-1.000	0-0	0-0
Sekiyama Honoka	0-1.000	0-0	0-0
Obata Minori	0-1.000	0-0	0-0

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.

Year	Record	Win rate
2026	0-6	.000
Total	0-5	.000

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