Go Player Ratings

JAKOAbout ratings

Yoon Seo-yul

Yoon Seo-yul (윤서율) has a rating of 1426, ranked 241 of 340 in korea play. Their highest rating so far is 1505 (February 21, 2026).

Yoon Seo-yul윤서율尹嶼燏
Rating1426
Rank241
1-year change↓74
Peak rating1505
Last 1012-22(1 by default)
2026 record
11-21
Record since 1954
12-22
Win rate
.353

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

Korea ratingsFind a player

Rating history — korea

33 gamesHigh 1505Low 1405
33 gamesHigh 1505Low 1405
33 gamesHigh 1505Low 1405
33 gamesHigh 1505Low 1405

The “All” view starts at 1970; 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 11, 2026Park Soyul한국 프로기사협회 리그 Group 8　as White↑21
September 4, 2026Jeong Dooho한국 프로기사협회 리그 Main Group 8　as White↓10
August 5, 2026Kang Jae-wooThe Merriden Open 신예조 예선 1회전　as Black↓6
July 17, 2026Lim Eui-hyunSG杯 韓国日報 名人戦 Preliminary Round 1　as Black↓17
July 8, 2026Lee Euihyun한국 프로기사협회 리그 Group 7　as Black↓5
June 29, 2026Jeon Jong-chan한국 프로기사협회 리그 Group 7　as Black↓15
June 25, 2026Ak Jiwoo한국 프로기사협회 리그 Group 7　as White↓21
June 17, 2026Lee Yongshin한국 프로기사협회 리그 Group 7　as Black↑3
June 15, 2026Kim Jimyeong한국 프로기사협회 리그 Group 7　as Black↑20
June 10, 2026Lee Joo-young한국 프로기사협회 리그 Main Group 7　as Black↓10
May 28, 2026Jung Jun-woo河燦錫国手杯 英才最強戦 Main Round of 16　as Black↓8
May 27, 2026Choi Hwan-young한국 프로기사협회 리그 Group 7　as White↓8
May 26, 2026Lee Min-seok河燦錫国手杯 英才最強戦 Preliminary final　as Black↑25
May 21, 2026Lee Yoon한국 프로기사협회 리그 Group 7　as White↓21
May 20, 2026Kim Dan-yu한국 프로기사협회 리그 Group 7　as White↑14
May 19, 2026Jang Jin-ah한국 프로기사협회 리그 Group 7　as White↑11
May 7, 2026Kim Sa-woo한국 프로기사협회 리그 Main Group 7　as Black↓12
May 6, 2026Kim Dong-Wook한국 프로기사협회 리그 Main Group 7　as White↑19
April 28, 2026Yun Minjung한국 프로기사협회 리그 Group 7　as Black↓6
April 22, 2026Kim Ha-yoonJiji Auction杯 紳士・淑女・新鋭連勝対抗戦 신사 숙녀 신예 연승대항전 예선 3회전　as White↓7

Tournament names are shown in Korean, as the Korea Baduk Association writes them, unless an English name is known.

Round names are translated from the Korea Baduk Association's wording; those we cannot translate are left in Korean.

Record by year

Counted by calendar year, January to December, from Korea Baduk Association games only (default wins and losses are included; jigo and no-result games are not). Games from 1954 onward; international tournaments are not included.

YearRecordWin rate
202611-21.344
20251-1.500

Calculated from games played between 1954 and 2026 (as of September 22, 2026).