| 7. Jornada | 03.04.2021 | FC Seoul | - | Gangwon FC | 0:1 | ||||
| 9. Jornada | 10.04.2021 | FC Seoul | - | Pohang Steelers | 1:2 |  |
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| 10. Jornada | 17.04.2021 | FC Seoul | - | Daegu FC | 0:1 | ||||
| 11. Jornada | 21.04.2021 | Jeju United | - | FC Seoul | 2:1 | ||||
| 13. Jornada | 30.04.2021 | FC Seoul | - | Seongnam FC | 2:2 | ||||
| 18. Jornada | 23.05.2021 | Gangwon FC | - | FC Seoul | 0:0 | ||||
| 14. Jornada | 19.06.2021 | Gwangju FC | - | FC Seoul | 1:1 | ||||
| 16. Jornada | 05.09.2021 | FC Seoul | - | Jeonbuk FC | 3:4 |
Corea del Sur