| K League 1 2021 - Appearances as Assistant | ||||
| 18/05/2021 | Suwon FC | - | Pohang Steelers | 3:4 |
| 29/05/2021 | Jeju United | - | Ulsan Hyundai FC | 1:2 |
| 25/08/2021 | Jeonbuk FC | - | Pohang Steelers | 2:0 |
| 18/09/2021 | Daegu FC | - | Ulsan Hyundai FC | 2:1 |
| 21/09/2021 | Suwon Bluewings | - | Gangwon FC | 3:2 |
| 25/09/2021 | Jeonbuk FC | - | Incheon United | 2:0 |
| 03/10/2021 | Jeju United | - | Seongnam FC | 2:1 |
South Korea