| K League 1 2018 - Appearances as Referee |  |
 |
 |
||||
| 22/04/2018 | Jeju United | - | Jeonbuk FC | 0:1 | 2 | 1 | 1 |
| 25/04/2018 | Daegu FC | - | Sangju Sangmu | 1:2 | 5 | - | 1 |
| K League 1 2018 - Appearances as Referee | |
|
|
||||
| 22/04/2018 | Jeju United | - | Jeonbuk FC | 0:1 | 2 | 1 | 1 |
| 25/04/2018 | Daegu FC | - | Sangju Sangmu | 1:2 | 5 | - | 1 |
| Complete name: | Dong-jin Seo |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |