| K League 1 2015 Relegation - Appearances as Referee |  |
 |
 |
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| 25/10/2015 | Gwangju FC | - | Incheon United | 0:0 | 5 | - | - |
| 22/11/2015 | Busan IPark | - | Jeonnam Dragons | 1:1 | 7 | - | - |
| K League 1 2015 Relegation - Appearances as Referee | |
|
|
||||
| 25/10/2015 | Gwangju FC | - | Incheon United | 0:0 | 5 | - | - |
| 22/11/2015 | Busan IPark | - | Jeonnam Dragons | 1:1 | 7 | - | - |
| Complete name: | Hyung-jin Ko |
| Born: | 20/06/1982 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |