Go Player Ratings

JAKOAbout ratings

O Yujin

O Yujin (오유진) has a rating of 1797, ranked 45 of 340 in korea play. Their highest rating so far is 1848 (January 6, 2026).

O Yujin오유진呉侑珍
Rating1797
Rank45
1-year change↑25
Peak rating1848
Last 10197-154(2 by default)
2026 record
28-12
Record since 1954
197-154
Win rate
.561

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

Korea ratingsFind a player

Rating history — korea

19 gamesHigh 1848Low 1768
79 gamesHigh 1848Low 1652
133 gamesHigh 1848Low 1633
349 gamesHigh 1848Low 1452

The “All” view starts at 1970; earlier years are used only to warm up the calculation and are not shown.

Rating history in the korean women's tournaments pool (for reference)

41 gamesHigh 1841Low 1702
104 gamesHigh 1845Low 1702
181 gamesHigh 1977Low 1702
364 gamesHigh 1977Low 1490

The “All” view starts at 1970; earlier years are used only to warm up the calculation and are not shown.

Ratings in other pools

Ratings for Korean play and for Korean women's tournaments are calculated independently, and neither affects ratings in Japanese tournaments.

  • Korean women's tournaments: 1841 (#4)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 19, 2026Kim Eunji한국여자바둑리그 준PO 1차전　as Black↑25
September 18, 2026Lee JungwooThe Merriden Open Round of 32　as White↑9
September 17, 2026Li He한국여자바둑리그 14-4(통합라운드)　as White↑17
September 16, 2026Kim SinyoungSh수협은행 여자바둑 최강전 Quarterfinal　as Black↑7
September 10, 2026Cho Seunga한국여자바둑리그 13-1　as Black↑12
September 3, 2026Kim Hyeoimin한국여자바둑리그 12-1　as White↑8
September 2, 2026Heo SeohyunHarim杯 プロ女子国手戦 Main Quarterfinal　as White↓16
August 22, 2026Ueno Risa한국여자바둑리그 11-1　as White↓23
August 15, 2026Park Taehee한국여자바둑리그 10-3　as Black↑6
August 7, 2026Lee Minjin한국여자바둑리그 9-2　as Black↓27
August 5, 2026Cho SeungaSh수협은행 여자바둑 최강전 Round of 16　as White↑9
August 3, 2026Park TaeheeHarim杯 プロ女子国手戦 Main Round of 16　as White↑6
July 31, 2026Baek Yeo-jeong한국여자바둑리그 8-2　as Black↑4
July 27, 2026Paek HongseokJiji Auction杯 紳士・淑女・新鋭連勝対抗戦 신사ㆍ숙녀ㆍ신예 연승대항전 21국　as Black↓15
July 16, 2026Kim Eunji한국여자바둑리그 7-1　as White↓7
July 15, 2026Lee DohyunSh수협은행 여자바둑 최강전 예선 2회차　as White↑4
July 14, 2026Kim EunseonSh수협은행 여자바둑 최강전 Preliminary Round 1　as Black↑8
July 12, 2026Cho Seunga한국여자바둑리그 6-4　as White↑12
July 5, 2026Jeong Yujin한국여자바둑리그 5-4(통합라운드)　as Black↓21
June 28, 2026Kim Dayoung한국여자바둑리그 4-4　as Black↑10

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
202628-12.700
202541-20.672
202447-20.702
202334-23.597
202238-29.567
202147-23.671
202034-21.618
201925-14.641
201840-17.702
201727-24.529
201621-16.568
201535-16.686
201411-13.458
201313-22.371
20123-3.500

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