| K League 1 2023 Relegation - Appearances as Referee |  |
 |
 |
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| 29/10/2023 | Suwon Bluewings | - | Daejeon Hana Citizen | 2:2 | 2 | - | - |
| 02/12/2023 | Suwon Bluewings | - | Gangwon FC | 0:0 | 5 | - | - |
| K League 1 2023 Relegation - Appearances as Referee | |
|
|
||||
| 29/10/2023 | Suwon Bluewings | - | Daejeon Hana Citizen | 2:2 | 2 | - | - |
| 02/12/2023 | Suwon Bluewings | - | Gangwon FC | 0:0 | 5 | - | - |
| Complete name: | Hyung-jin Ko |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |