| K League 1 2017 Championship - Appearances as Referee |  |
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 |
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| 14/10/2017 | Jeju United | - | Gangwon FC | 1:0 | 5 | - | - |
| 28/10/2017 | FC Seoul | - | Ulsan Hyundai FC | 3:0 | 4 | - | - |
| K League 1 2017 Championship - Appearances as Referee | |
|
|
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| 14/10/2017 | Jeju United | - | Gangwon FC | 1:0 | 5 | - | - |
| 28/10/2017 | FC Seoul | - | Ulsan Hyundai FC | 3:0 | 4 | - | - |
| Complete name: | Hyung-jin Ko |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |