| K League 1 2020 Relegation - Appearances as Assistant | ||||
| 17/10/2020 | Seongnam FC | - | FC Seoul | 0:1 |
| 24/10/2020 | Incheon United | - | Busan IPark | 2:1 |
| K League 1 2020 Relegation - Appearances as Assistant | ||||
| 17/10/2020 | Seongnam FC | - | FC Seoul | 0:1 |
| 24/10/2020 | Incheon United | - | Busan IPark | 2:1 |
| Complete name: | Kwang-yeol Yoon |
| Born: | 00/00/1976 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |