| 4. Ronde | 14.03.2021 | Suwon FC | - | Seongnam FC | 1:2 | ||||
| 9. Ronde | 11.04.2021 | Suwon FC | - | Ulsan Hyundai FC | 0:1 | ||||
| 13. Ronde | 01.05.2021 | Suwon FC | - | Daegu FC | 2:4 | ||||
| 14. Ronde | 08.05.2021 | Jeju United | - | Suwon FC | 1:3 | ||||
| 17. Ronde | 18.05.2021 | Suwon FC | - | Pohang Steelers | 3:4 | ||||
| 18. Ronde | 21.05.2021 | Suwon FC | - | Incheon United | 2:2 | ||||
| 19. Ronde | 29.05.2021 | Seongnam FC | - | Suwon FC | 2:3 | ||||
| 20. Ronde | 20.07.2021 | Suwon Bluewings | - | Suwon FC | 1:2 | ||||
| 25. Ronde | 15.08.2021 | Pohang Steelers | - | Suwon FC | 3:1 |
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