| 4. Jornada | 14.03.2021 | Suwon FC | - | Seongnam FC | 1:2 |  |
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| 5. Jornada | 17.03.2021 | Incheon United | - | Suwon FC | 4:1 |  |
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| 6. Jornada | 20.03.2021 | Jeonbuk FC | - | Suwon FC | 1:1 |  |
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| 7. Jornada | 04.04.2021 | Suwon FC | - | Jeju United | 2:1 | |
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| 8. Jornada | 07.04.2021 | Gwangju FC | - | Suwon FC | 2:0 | ||||
| 9. Jornada | 11.04.2021 | Suwon FC | - | Ulsan Hyundai FC | 0:1 | |
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| 10. Jornada | 17.04.2021 | Suwon FC | - | Gangwon FC | 2:1 | ||||
| 11. Jornada | 20.04.2021 | Pohang Steelers | - | Suwon FC | 1:0 | ||||
| 12. Jornada | 25.04.2021 | Suwon FC | - | FC Seoul | 1:1 | ||||
| 13. Jornada | 01.05.2021 | Suwon FC | - | Daegu FC | 2:4 | ||||
| 14. Jornada | 08.05.2021 | Jeju United | - | Suwon FC | 1:3 | ||||
| 15. Jornada | 11.05.2021 | Suwon FC | - | Gwangju FC | 2:1 | |
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| 17. Jornada | 18.05.2021 | Suwon FC | - | Pohang Steelers | 3:4 | ||||
| 18. Jornada | 21.05.2021 | Suwon FC | - | Incheon United | 2:2 | |
Corea del Sur