Go Player Ratings

JAAbout ratings

Seki Ryosuke

Seki Ryosuke (関涼介) has a rating of 1700, ranked 134 of 452 in professional play. Their highest rating so far is 1700 (September 3, 2026).

Seki Ryosuke2 dan関涼介Nihon Ki-in Tokyo
Rating1700
Rank134
1-year change↑120
Peak rating1700
Last 1044-38(1 lost by default)
2026 record
14-8(1 lost by default)
Record since 1927
44-38
Win rate
.537

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

Professional ratingsFind a player

Rating history — professional

25 gamesHigh 1700Low 1585
76 gamesHigh 1700Low 1504
80 gamesHigh 1700Low 1491
80 gamesHigh 1700Low 1491

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 3, 2026Toyoda HirohitoOza　Colors unknown↑17
August 20, 2026Xiao YuyangHiroshima Aluminum Cup Wakagoi Preliminary Semifinal　Colors unknown↓6
August 20, 2026Chen BoshaoHiroshima Aluminum Cup Wakagoi Preliminary Round 1　Colors unknown↑15
August 6, 2026Ishida YoshioOza　Colors unknown↑10
July 30, 2026Komatsu HidekiGosei　Colors unknown↓12
July 23, 2026Izawa AkinoTengen　Colors unknown↑6
June 29, 2026Obata MinoriOza　Colors unknown↑7
June 18, 2026Takekiyo IsamuGosei　Colors unknown↑12
June 11, 2026Hamakado HibikiJudan　Colors unknown↓12
May 25, 2026Oki KeijiOza　Colors unknown↑6
May 18, 2026Chang FukangJudan　Colors unknown↑21
May 11, 2026Miyatani FugaGosei　Colors unknown↑14
April 30, 2026Yamada TakujiHoninbo　Colors unknown↓13
April 23, 2026Fukuoka KotaroGlobis Cup Japan Representative Playoff Round 1　Colors unknown—
April 6, 2026Omote YutoShinjin-O Round 1　as White—
March 30, 2026Nagashima KozueJudan　Colors unknown↑4
March 26, 2026Koyama KuyaMeijin　Colors unknown↓4
March 19, 2026Yamamoto MasatoGosei　Colors unknown↑5
March 2, 2026Kobayashi IzumiJudan　Colors unknown↑15
February 19, 2026Matsumoto TakehisaKisei First Tournament Preliminary Round 2　Colors unknown↓7

Head-to-head

Up to 10 opponents, most-played first. Records are from Seki Ryosuke'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
Onishi Kenya0-2.0000-00-0
Cho Koharu2-01.0001-01-0
Jo Bunen1-1.5000-01-0
Ishida Yoshio2-01.0000-00-0
Izawa Akino2-01.0000-00-0
Hamakado Hibiki1-1.5000-00-0
Kawahara Yu1-1.5000-00-1
I Ryo0-2.0000-00-0
Cho Kosumi2-01.0000-01-0
Fujii Koki0-2.0000-00-1

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
202614-8.636
202512-12.500
202414-15.483
20234-3.571
Total44-38.537

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