Go Player Ratings

JAAbout ratings

I Ryo

I Ryo (伊了) has a rating of 1957, ranked 37 of 452 in professional play. Their highest rating so far is 2025 (February 19, 2026).

I Ryo5 dan伊了Nihon Ki-in Tokyo
Rating1957
Rank37
1-year change↓18
Peak rating2025
Last 10148-113
2026 record
15-10
Record since 1927
148-113
Win rate
.567

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

Professional ratingsFind a player

Rating history — professional

40 gamesHigh 2025Low 1937
115 gamesHigh 2025Low 1776
171 gamesHigh 2025Low 1398
248 gamesHigh 2025Low 1398

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 17, 2026Nyu EikoGosei Preliminary A　as White↑7
September 10, 2026Shuto ShunHoninbo Preliminary A　as Black↑13
September 3, 2026Tsuruta KazushiMeijin　Colors unknown↓16
August 24, 2026U BoiKisei League B2　as Black↓19
August 6, 2026Yo ChitoHiroshima Aluminum Cup Wakagoi Preliminary Final　Colors unknown↓23
August 6, 2026Hino ShotaHiroshima Aluminum Cup Wakagoi Preliminary Semifinal　Colors unknown↑3
July 23, 2026Sakai MakiHoninbo　Colors unknown↑3
July 13, 2026Onishi RyuheiKisei League B2　as White↓12
July 6, 2026Mimura TomoyasuHoninbo　Colors unknown↑10
July 2, 2026Miura TaroMeijin　Colors unknown↑20
June 25, 2026Watanabe KandaiShinjin-O Round 2　as White↓25
June 14, 2026Muramoto WataruNHK Cup Round 1　as Black↓20
June 11, 2026Koyama KuyaKisei League B2　as Black↑17
May 25, 2026Rin KanketsuKisei League B2　as White↑17
May 18, 2026Mizokami TomochikaMeijin　Colors unknown↑11
April 30, 2026Onishi RyuheiJudan　Colors unknown↓9
April 20, 2026Miura TaroKisei League B2　as Black↓12
April 6, 2026Moro ArisaJudan　Colors unknown↑2
April 2, 2026Hon AkiyoshiKisei League B2　as White↓22
March 26, 2026Yokota HinanoMeijin　Colors unknown↑3

Head-to-head

Up to 10 opponents, most-played first. Records are from I Ryo'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 Ryuhei1-4.2000-00-3
Miura Taro2-3.4001-10-2
Terayama Rei4-1.8001-00-0
Seki Kotaro0-4.0000-10-1
Kibe Natsuki3-1.7500-00-0
Koyama Kuya3-1.7502-00-0
Miyazaki Ryutaro2-2.5000-00-0
Kono Mitsuki4-01.0000-00-0
Onishi Kenya2-1.6670-01-0
Oomote Takuto0-3.0000-00-0

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
202533-14.702
202420-13.606
202323-10.697
202216-9.640
202113-16.448
20206-11.353
20199-14.391
201811-13.458
20172-2.500
20160-1.000
Total148-113.567

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