| 1. Jornada | 28.02.2021 | Pohang Steelers | - | Incheon United | 2:1 | ||||
| 2. Jornada | 06.03.2021 | Incheon United | - | Daegu FC | 2:1 |  |
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| 3. Jornada | 09.03.2021 | Ulsan Hyundai FC | - | Incheon United | 3:1 | |
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| 4. Jornada | 13.03.2021 | Incheon United | - | FC Seoul | 0:1 | ||||
| 5. Jornada | 17.03.2021 | Incheon United | - | Suwon FC | 4:1 |  |
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| 6. Jornada | 21.03.2021 | Gangwon FC | - | Incheon United | 2:0 | ||||
| 7. Jornada | 04.04.2021 | Gwangju FC | - | Incheon United | 2:1 |  |
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| 10. Jornada | 17.04.2021 | Incheon United | - | Jeju United | 0:3 |
Corea del Sur