| Relegation 2021 - Appearances as Assistant | ||||
| 08/12/2021 | Daejeon Hana Citizen | - | Gangwon FC | 1:0 |
| Relegation 2021 - Appearances as Assistant | ||||
| 08/12/2021 | Daejeon Hana Citizen | - | Gangwon FC | 1:0 |
| Complete name: | Jae-yeol Yoon |
| Born: | 25/12/1976 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |