| K League 1 2021 Relegation - Appearances as Assistant | ||||
| 03/11/2021 | Pohang Steelers | - | Gangwon FC | 4:0 |
| 04/12/2021 | Gwangju FC | - | Incheon United | 1:1 |
| K League 1 2021 Relegation - Appearances as Assistant | ||||
| 03/11/2021 | Pohang Steelers | - | Gangwon FC | 4:0 |
| 04/12/2021 | Gwangju FC | - | Incheon United | 1:1 |
| Complete name: | Jong-pil Jang |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |