1. Round | 01/03/2021 | Ulsan Hyundai FC | - | Gangwon FC | 5:0 | ||||
2. Round | 06/03/2021 | Gwangju FC | - | Ulsan Hyundai FC | 0:1 | ||||
7. Round | 03/04/2021 | Seongnam FC | - | Ulsan Hyundai FC | 0:1 | ||||
8. Round | 07/04/2021 | Ulsan Hyundai FC | - | FC Seoul | 3:2 | ||||
9. Round | 11/04/2021 | Suwon FC | - | Ulsan Hyundai FC | 0:1 | ||||
10. Round | 18/04/2021 | Suwon Bluewings | - | Ulsan Hyundai FC | 3:0 | ||||
11. Round | 21/04/2021 | Ulsan Hyundai FC | - | Jeonbuk FC | 0:0 | ||||
12. Round | 25/04/2021 | Incheon United | - | Ulsan Hyundai FC | 0:0 | ||||
13. Round | 01/05/2021 | Ulsan Hyundai FC | - | Gwangju FC | 2:0 | ||||
15. Round | 12/05/2021 | Gangwon FC | - | Ulsan Hyundai FC | 2:2 | ||||
16. Round | 16/05/2021 | Ulsan Hyundai FC | - | Suwon Bluewings | 1:1 | ||||
19. Round | 29/05/2021 | Jeju United | - | Ulsan Hyundai FC | 1:2 | ||||
22. Round | 31/07/2021 | FC Seoul | - | Ulsan Hyundai FC | 0:0 | ||||
28. Round | 29/08/2021 | Ulsan Hyundai FC | - | Incheon United | 3:2 | ||||
32. Round | 25/09/2021 | Ulsan Hyundai FC | - | Gwangju FC | 1:0 | ||||
33. Round | 02/10/2021 | Suwon FC | - | Ulsan Hyundai FC | 0:3 | ||||
24. Round | 24/10/2021 | Seongnam FC | - | Ulsan Hyundai FC | 2:1 |