| K League 1 2019 Relegation - Appearances as Referee |  |
 |
 |
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| 19/10/2019 | Sangju Sangmu | - | Jeju United | 2:1 | 4 | - | - |
| 24/11/2019 | Seongnam FC | - | Gyeongnam FC | 1:2 | 1 | 1 | - |
| K League 1 2019 Relegation - Appearances as Referee | |
|
|
||||
| 19/10/2019 | Sangju Sangmu | - | Jeju United | 2:1 | 4 | - | - |
| 24/11/2019 | Seongnam FC | - | Gyeongnam FC | 1:2 | 1 | 1 | - |
| Complete name: | Woo-sung Kim |
| Born: | 28/05/1987 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |