| 3. Journée | 23.05.2020 | Suwon Bluewings | - | Incheon United | 1:0 | ||||
| 4. Journée | 31.05.2020 | Incheon United | - | Pohang Steelers | 1:4 | ||||
| 5. Journée | 05.06.2020 | Incheon United | - | Gangwon FC | 1:2 | ||||
| 6. Journée | 13.06.2020 | Jeonbuk FC | - | Incheon United | 1:0 |  |
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| 7. Journée | 17.06.2020 | Gwangju FC | - | Incheon United | 2:1 | ||||
| 8. Journée | 21.06.2020 | Incheon United | - | Busan IPark | 0:1 | ||||
| 9. Journée | 27.06.2020 | FC Seoul | - | Incheon United | 1:0 | ||||
| 10. Journée | 04.07.2020 | Ulsan Hyundai FC | - | Incheon United | 4:1 | ||||
| 11. Journée | 11.07.2020 | Incheon United | - | Sangju Sangmu | 1:1 | ||||
| 12. Journée | 19.07.2020 | Incheon United | - | Jeonbuk FC | 1:1 | |
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| 13. Journée | 26.07.2020 | Pohang Steelers | - | Incheon United | 1:1 | ||||
| 14. Journée | 01.08.2020 | Incheon United | - | Gwangju FC | 1:3 | ||||
| 15. Journée | 09.08.2020 | Incheon United | - | Seongnam FC | 0:2 | ||||
| 17. Journée | 22.08.2020 | Incheon United | - | Suwon Bluewings | 1:0 | ||||
| 19. Journée | 06.09.2020 | Gangwon FC | - | Incheon United | 2:3 | |
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| 20. Journée | 13.09.2020 | Busan IPark | - | Incheon United | 0:0 |  |
Corée du Sud