| K League 1 2018 Relegation - Appearances as Referee |  |
 |
 |
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| 04/11/2018 | Gangwon FC | - | Jeonnam Dragons | 1:0 | 5 | - | - |
| 11/11/2018 | Daegu FC | - | Sangju Sangmu | 0:0 | 3 | 1 | - |
| K League 1 2018 Relegation - Appearances as Referee | |
|
|
||||
| 04/11/2018 | Gangwon FC | - | Jeonnam Dragons | 1:0 | 5 | - | - |
| 11/11/2018 | Daegu FC | - | Sangju Sangmu | 0:0 | 3 | 1 | - |
| Complete name: | Dong-jun Lee |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |