Go Player Ratings

JAKOAbout ratings

Choi Won-jin

Choi Won-jin (최원진) has a rating of 1603, ranked 140 of 340 in korea play. Their highest rating so far is 1751 (January 23, 2023).

Choi Won-jin최원진崔原進
Rating1603
Rank140
1-year change↓3
Peak rating1751
Last 1051-35(2 by default, 1 lost by default)
2026 record
1-2
Record since 1954
51-35
Win rate
.593

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

Korea ratingsFind a player

Rating history — korea

3 gamesHigh 1618Low 1603
28 gamesHigh 1702Low 1603
83 gamesHigh 1751Low 1479
83 gamesHigh 1751Low 1479

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
July 19, 2026Choi SeungcheolSG杯 韓国日報 名人戦 Preliminary Round 3　as White↓13
January 6, 2026Byun SangilGS Caltex杯 プロ棋戦 Preliminary Round 2　as White↓2
January 5, 2026Yoo ChangjuGS Caltex杯 プロ棋戦 Preliminary Round 1　as Black↑12
October 1, 2025Choi JaeyoungSUPER CUP BADUK OPEN 예선 1회차　Colors unknown—
September 21, 2025Kwak Wonkeun한국바둑리그 1차예선 2국　as White↓16
February 4, 2025Lee HyeonjunHana Bank囲碁SUPER MATCH 예선 1회차　as White↓9
January 6, 2025Lee WonyoungGS Caltex杯 プロ棋戦 예선 1회차　as White↓8
November 19, 2024Yoon Seo-won한국바둑리그 2차 예선 2국　as White↑11
November 19, 2024Ju Hyeongwuk한국바둑리그 2차 예선 3국　as Black↓16
November 6, 2024Ju Hyeongwuk한국바둑리그 2차예선 1국　as White↓18
November 5, 2024Lee Min-seok한국바둑리그 1차예선 1국　as White↑10
November 5, 2024Park Dongjoo한국바둑리그 1차예선 2국　as White↑12
March 25, 2024Nakamura Sumire李鵬杯 新鋭最高位戦 Preliminary Round 1　as Black↓21
December 27, 2023Hwang JaeyeonSopalkosanol最高棋士決定戦 1차 예선 1회차　as White↓18
December 15, 2023Won SeongjinGS Caltex杯 プロ棋戦 Preliminary Final　as White↓5
December 14, 2023Ko MisoGS Caltex杯 プロ棋戦 Preliminary Round 3　as White↑3
December 13, 2023Kwon JuriGS Caltex杯 プロ棋戦 Preliminary Round 2　as White↑7
December 12, 2023Yun ChanheeGS Caltex杯 プロ棋戦 Preliminary Round 1　as Black↑22
December 8, 2023Lee Sang-bin한국 프로기사협회 리그 Group 6　as Black↑12
November 23, 2023Kim Sedong한국바둑리그 1차 선발전 1국 (32조)　as Black↓6

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
20261-2.333
20250-4.000
20243-3.500
202322-16.579
202225-10.714

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