| K League 1 2021 - Appearances as Referee |  |
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| 27/02/2021 | Daegu FC | - | Suwon FC | 1:1 | 4 | - | - |
| 09/03/2021 | Jeju United | - | Pohang Steelers | 1:0 | 4 | - | - |
| 17/03/2021 | FC Seoul | - | Gwangju FC | 2:1 | - | - | - |
| 21/03/2021 | Seongnam FC | - | Pohang Steelers | 2:1 | 1 | - | 1 |
| 03/04/2021 | Suwon Bluewings | - | Jeonbuk FC | 1:3 | 1 | - | - |
| 10/04/2021 | FC Seoul | - | Pohang Steelers | 1:2 | 6 | - | - |
| 21/04/2021 | Seongnam FC | - | Incheon United | 1:3 | 2 | - | - |
| 24/04/2021 | Gwangju FC | - | Daegu FC | 0:1 | 5 | - | - |
| 15/05/2021 | Gangwon FC | - | Suwon FC | 0:0 | 4 | - | - |
| 20/07/2021 | Suwon Bluewings | - | Suwon FC | 1:2 | 2 | 1 | - |
| 11/08/2021 | Jeonbuk FC | - | Gwangju FC | 3:0 | 6 | - | - |
| 14/08/2021 | Jeju United | - | Ulsan Hyundai FC | 2:2 | 4 | - | - |
| 10/09/2021 | Pohang Steelers | - | Daegu FC | 1:2 | 4 | - | - |
| 02/10/2021 | Gangwon FC | - | Jeonbuk FC | 0:1 | 4 | 1 | - |
South Korea