| K League 1 2019 Relegation - Appearances as Referee |  |
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| 30/11/2019 | Seongnam FC | - | Jeju United | 3:1 | 4 | - | 1 |
| K League 1 2019 Relegation - Appearances as Referee | |
|
|
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| 30/11/2019 | Seongnam FC | - | Jeju United | 3:1 | 4 | - | 1 |
| Complete name: | Il-woo Choi |
| Born: | 28/11/1988 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |