Go Player Ratings

JAKOAbout ratings

Cho Jong-sin

Cho Jong-sin (조종신) has a rating of 1669. Their highest rating so far is 1730 (October 31, 2024).

Cho Jong-sin조종신趙宗信
Rating1669
Rank—
1-year change—
Peak rating1730
Last 1094-70(4 by default)
2025 record
13-11
Record since 1954
94-70
Win rate
.573

No games in the last year

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

Korea ratingsFind a player

Rating history — korea

89 gamesHigh 1730Low 1583
160 gamesHigh 1730Low 1468
160 gamesHigh 1730Low 1468

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
August 1, 2025Min Sangyoun大統領杯 全国囲碁大会 プロ部門 Preliminary Final　as Black↓16
August 1, 2025Lee Jeongeun大統領杯 全国囲碁大会 プロ部門 예선 2회차　as White↑7
July 18, 2025Ju Hyunwoo한국 프로기사협회 리그 Group 3　Colors unknown—
June 20, 2025An ChoyeongSG杯 韓国日報 名人戦 Preliminary Round 4　as Black↓19
June 19, 2025Park JeonggeunSG杯 韓国日報 名人戦 Preliminary Round 3　as Black↑12
June 18, 2025An SungjunSG杯 韓国日報 名人戦 Preliminary Round 2　as Black↑30
June 17, 2025Yun JongseobSG杯 韓国日報 名人戦 Preliminary Round 1　as White±0
June 9, 2025Im Sang-gyu한국 프로기사협회 리그 Group 3　as Black↓15
June 4, 2025Lee Seungjun한국 프로기사협회 리그 Group 3　as White↓12
June 2, 2025Hong Se-young한국 프로기사협회 리그 Group 3　as Black↓18
May 29, 2025Kim Beomseo한국 프로기사협회 리그 Group 3　as White↑14
May 28, 2025Lee Hyeonjun한국 프로기사협회 리그 Group 3　as Black↑21
May 26, 2025Nakamura Sumire한국 프로기사협회 리그 Group 3　as White↓16
May 14, 2025Hwang Jaeyeon한국 프로기사협회 리그 Group 3　as White↑19
May 8, 2025Lee Sang-bin한국 프로기사협회 리그 Group 3　as White↓19
May 7, 2025Kang Jae-woo한국 프로기사협회 리그 Group 3　as Black↑17
April 22, 2025Kim Joo-hyung한국 프로기사협회 리그 Group 3　as Black↑15
April 21, 2025Cho Seunga한국 프로기사협회 리그 Group 3　as Black↑22
April 17, 2025Park Kyuongkeun한국 프로기사협회 리그 Group 3　as Black↑17
April 9, 2025Chang Geonhyun한국 프로기사협회 리그 Group 3　as White↑17

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
202513-11.542
202430-22.577
202336-23.610
202215-14.517

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