| K League 1 2024 Relegation - Appearances as Assistant | ||||
| 27/10/2024 | Jeju United | - | Jeonbuk FC | 1:0 |
| 10/11/2024 | Incheon United | - | Daejeon Hana Citizen | 1:2 |
| K League 1 2024 Relegation - Appearances as Assistant | ||||
| 27/10/2024 | Jeju United | - | Jeonbuk FC | 1:0 |
| 10/11/2024 | Incheon United | - | Daejeon Hana Citizen | 1:2 |
| Complete name: | Joo-kyung Sung |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |