1. Round | 27/02/2021 | Jeonbuk FC | - | FC Seoul | 2:0 | ||||
3. Round | 10/03/2021 | Seongnam FC | - | FC Seoul | 1:0 | ||||
4. Round | 13/03/2021 | Incheon United | - | FC Seoul | 0:1 | ||||
5. Round | 17/03/2021 | FC Seoul | - | Gwangju FC | 2:1 | ||||
8. Round | 07/04/2021 | Ulsan Hyundai FC | - | FC Seoul | 3:2 | ||||
9. Round | 10/04/2021 | FC Seoul | - | Pohang Steelers | 1:2 | ||||
10. Round | 17/04/2021 | FC Seoul | - | Daegu FC | 0:1 | ||||
19. Round | 29/05/2021 | FC Seoul | - | Suwon Bluewings | 0:3 | ||||
15. Round | 06/06/2021 | Daegu FC | - | FC Seoul | 1:1 | ||||
14. Round | 19/06/2021 | Gwangju FC | - | FC Seoul | 1:1 | ||||
25. Round | 15/08/2021 | Jeonbuk FC | - | FC Seoul | 3:2 | ||||
20. Round | 18/08/2021 | FC Seoul | - | Jeju United | 0:1 | ||||
26. Round | 22/08/2021 | FC Seoul | - | Pohang Steelers | 2:2 | ||||
27. Round | 25/08/2021 | FC Seoul | - | Ulsan Hyundai FC | 1:2 | ||||
28. Round | 29/08/2021 | Jeju United | - | FC Seoul | 1:0 |