| K League 1 2017 Championship - Appearances as Assistant | ||||
| 14/10/2017 | Jeju United | - | Gangwon FC | 1:0 |
| 21/10/2017 | FC Seoul | - | Suwon Bluewings | 2:2 |
| 05/11/2017 | Ulsan Hyundai FC | - | Jeonbuk FC | 1:2 |
| K League 1 2017 Championship - Appearances as Assistant | ||||
| 14/10/2017 | Jeju United | - | Gangwon FC | 1:0 |
| 21/10/2017 | FC Seoul | - | Suwon Bluewings | 2:2 |
| 05/11/2017 | Ulsan Hyundai FC | - | Jeonbuk FC | 1:2 |
| Complete name: | Seung-soon Kwak |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |