| 4. Jornada | 18.03.2023 | Gwangju FC | - | Incheon United | 5:0 | ||||
| 6. Jornada | 09.04.2023 | Jeonbuk FC | - | Incheon United | 2:0 | ||||
| 7. Jornada | 16.04.2023 | Gangwon FC | - | Incheon United | 0:2 | ||||
| 8. Jornada | 22.04.2023 | Incheon United | - | Suwon FC | 2:2 | ||||
| 9. Jornada | 25.04.2023 | Incheon United | - | Ulsan Hyundai FC | 0:1 | ||||
| 16. Jornada | 04.06.2023 | Daejeon Hana Citizen | - | Incheon United | 1:3 | ||||
| 17. Jornada | 07.06.2023 | Incheon United | - | FC Seoul | 1:1 | ||||
| 19. Jornada | 25.06.2023 | Incheon United | - | Pohang Steelers | 0:1 | ||||
| 20. Jornada | 02.07.2023 | Incheon United | - | Gangwon FC | 1:0 |  |
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| 22. Jornada | 12.07.2023 | Ulsan Hyundai FC | - | Incheon United | 1:2 | ||||
| 23. Jornada | 16.07.2023 | Incheon United | - | Daejeon Hana Citizen | 2:0 | ||||
| 24. Jornada | 22.07.2023 | FC Seoul | - | Incheon United | 0:1 | ||||
| 25. Jornada | 06.08.2023 | Jeonbuk FC | - | Incheon United | 2:0 | ||||
| 26. Jornada | 13.08.2023 | Incheon United | - | Daegu FC | 3:1 | ||||
| 27. Jornada | 18.08.2023 | Incheon United | - | Gwangju FC | 2:2 |
Corea del Sur