| K League 1 2023 Championship - Appearances as Assistant | ||||
| 25/11/2023 | Jeonbuk FC | - | Gwangju FC | 2:0 |
| 03/12/2023 | Daegu FC | - | Incheon United | 2:1 |
| K League 1 2023 Championship - Appearances as Assistant | ||||
| 25/11/2023 | Jeonbuk FC | - | Gwangju FC | 2:0 |
| 03/12/2023 | Daegu FC | - | Incheon United | 2:1 |
| Complete name: | Eun-seok Gu |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |