| 7. Jornada | 16.04.2023 | Gangwon FC | - | Incheon United | 0:2 | ||||
| 8. Jornada | 22.04.2023 | Incheon United | - | Suwon FC | 2:2 |  |
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| 9. Jornada | 25.04.2023 | Incheon United | - | Ulsan Hyundai FC | 0:1 | ||||
| 10. Jornada | 30.04.2023 | Pohang Steelers | - | Incheon United | 0:2 | |
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| 20. Jornada | 02.07.2023 | Incheon United | - | Gangwon FC | 1:0 | ||||
| 21. Jornada | 08.07.2023 | Suwon FC | - | Incheon United | 2:2 | |
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| 22. Jornada | 12.07.2023 | Ulsan Hyundai FC | - | Incheon United | 1:2 | ||||
| 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 | ||||
| 28. Jornada | 25.08.2023 | Suwon FC | - | Incheon United | 1:2 | |
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| 29. Jornada | 02.09.2023 | Incheon United | - | Pohang Steelers | 0:2 | ||||
| 32. Jornada | 30.09.2023 | Incheon United | - | Suwon Bluewings | 2:0 | |
Corea del Sur