Go Player Ratings

JAKOAbout ratings

Jeong Yujin

Jeong Yujin (정유진) has a rating of 1509, ranked 202 of 340 in korea play. Their highest rating so far is 1531 (May 25, 2026).

Jeong Yujin정유진鄭有珍
Rating1509
Rank202
1-year change↑19
Peak rating1531
Last 10104-214(6 by default)
2026 record
22-8
Record since 1954
104-214
Win rate
.327

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

Korea ratingsFind a player

Rating history — korea

11 gamesHigh 1531Low 1436
104 gamesHigh 1531Low 1410
230 gamesHigh 1531Low 1301
312 gamesHigh 1531Low 1266

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)

33 gamesHigh 1777Low 1655
88 gamesHigh 1777Low 1539
155 gamesHigh 1777Low 1515
193 gamesHigh 1777Low 1460

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: 1777 (#6)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 17, 2026Choi Seo-bi한국여자바둑리그 14-3(통합라운드)　as Black↑6
September 15, 2026Ko MisoHaesung女子棋聖戦 Round of 24　as White↑6
September 12, 2026Lee Suljoo한국여자바둑리그 13-3　as Black↑9
September 8, 2026Lee Na-kyung蘭雪軒杯 全国女子囲碁大会 전국 여자바둑대회 예선 결승　as Black↑5
September 3, 2026Lee Youngjoo한국여자바둑리그 12-1　as Black↑7
August 24, 2026Ha HojungHaesung女子棋聖戦 Preliminary Final　as White↑2
August 23, 2026Kwon HyojinHaesung女子棋聖戦 예선 1회차　as White↑5
August 22, 2026Heo Seohyun한국여자바둑리그 11-4　as Black↓15
August 16, 2026Lee Yoon한국여자바둑리그 10-4　as White↓25
August 6, 2026Kim Eunseon한국여자바둑리그 9-1　as Black↑9
August 4, 2026Kim EunseonThe Merriden Open 여자조 예선 2회전　as White↓15
July 30, 2026Park Taehee한국여자바둑리그 8-1　as White↑8
July 17, 2026Choi Seo-bi한국여자바둑리그 7-2　as White↑8
July 15, 2026Kim MiriSh수협은행 여자바둑 최강전 예선 2회차　as Black↑8
July 10, 2026Lee Suljoo한국여자바둑리그 6-2　as White↑9
July 5, 2026O Yujin한국여자바둑리그 5-4(통합라운드)　as White↑21
June 25, 2026Lee Minjin한국여자바둑리그 4-1　as White↑10
June 23, 2026Cho EunjinHarim杯 プロ女子国手戦 예선 2회차　as Black↓21
June 18, 2026Cho Seunga한국여자바둑리그 3-1　as White↑17
June 14, 2026Li He한국여자바둑리그 본선 2-4　as Black↑23

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
202622-8.733
202535-39.473
202431-38.449
202326-41.388
202239-69.361
202140-71.360
202017-36.321

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