| K League 1 2020 Relegation - Appearances as Assistant | ||||
| 26/09/2020 | Suwon Bluewings | - | FC Seoul | 3:1 |
| 24/10/2020 | FC Seoul | - | Gangwon FC | 1:1 |
| K League 1 2020 Relegation - Appearances as Assistant | ||||
| 26/09/2020 | Suwon Bluewings | - | FC Seoul | 3:1 |
| 24/10/2020 | FC Seoul | - | Gangwon FC | 1:1 |
| Complete name: | Jae-yong Yang |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |