Go Player Ratings

JAKOAbout ratings

Cho Insun

Cho Insun (조인선) has a rating of 1587, ranked 154 of 340 in korea play. Their highest rating so far is 1865 (July 1, 2013).

Cho Insun조인선趙寅善
Rating1587
Rank154
1-year change↓24
Peak rating1865
Last 1095-81
2026 record
0-2
Record since 1954
95-81
Win rate
.540

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

Korea ratingsFind a player

Rating history — korea

2 gamesHigh 1600Low 1587
5 gamesHigh 1633Low 1587
5 gamesHigh 1633Low 1587
176 gamesHigh 1865Low 1514

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, 2026Choi Seungcheol한국 프로기사협회 리그 Group 6　as Black↓13
September 4, 2026Kim Kieon한국 프로기사협회 리그 Main Group 6　as Black↓10
November 6, 2024Lee Seongjae한국바둑리그 1차예선 3국　as White↓23
November 5, 2024Yun Yeseong한국바둑리그 1차예선 1국　as Black↑10
November 5, 2024O Yujin한국바둑리그 1차예선 2국　as Black↓14
January 3, 2020Kim Namhun용성전 일반조 예선 1회차　Colors unknown↓17
December 10, 2019Shin JaewonGS Caltex杯 プロ棋戦 예선 2회차　Colors unknown↓22
December 9, 2019Na JonghoonGS Caltex杯 プロ棋戦 예선 1회차　Colors unknown↑3
June 26, 2019Lee Hyeonjun국수산맥(국내) Preliminary Round 1　Colors unknown↓16
April 11, 2019Park Jinsol바둑TV배 마스터스 본선 64강　Colors unknown↓6
April 9, 2019Heo Yeongho바둑TV배 마스터스 예선 결승　Colors unknown↑20
April 8, 2019Park Younglong바둑TV배 마스터스 예선 1회차　Colors unknown↑16
March 5, 2019Lee Seungjun용성전 예선 1회차　Colors unknown↓19
December 27, 2018Moon MinjongKBS바둑왕전 Preliminary Round 3　Colors unknown↓22
December 26, 2018Han SangyeolKBS바둑왕전 Preliminary Round 1　Colors unknown↑1
December 26, 2018Hwang JinhyungKBS바둑왕전 Preliminary Round 2　Colors unknown↑11
December 10, 2018Kang ChangbaeGS Caltex杯 プロ棋戦 Preliminary Round 1　Colors unknown↓21
October 21, 2018An Jungki퓨처스리그 14-4　as Black↑15
September 29, 2018Kim Hyeongwan퓨처스리그 13-1　as Black↓20
September 22, 2018Kim Minseok퓨처스리그 12-1　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
20260-2.000
20241-2.333
20200-1.000
20193-4.429
201816-13.552
20172-3.400
20162-2.500
20152-3.400
201416-17.485
201324-11.686
201228-22.560
20111-1.500

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