| 1. Jornada | 25.02.2023 | Ulsan Hyundai FC | - | Jeonbuk FC | 2:1 | ||||
| 5. Jornada | 02.04.2023 | Jeju United | - | Ulsan Hyundai FC | 1:3 |  |
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| 6. Jornada | 08.04.2023 | Ulsan Hyundai FC | - | Suwon Bluewings | 2:1 | ||||
| 7. Jornada | 16.04.2023 | Daejeon Hana Citizen | - | Ulsan Hyundai FC | 2:1 | ||||
| 9. Jornada | 25.04.2023 | Incheon United | - | Ulsan Hyundai FC | 0:1 | ||||
| 10. Jornada | 30.04.2023 | Ulsan Hyundai FC | - | Gwangju FC | 2:1 | ||||
| 13. Jornada | 14.05.2023 | Ulsan Hyundai FC | - | FC Seoul | 3:2 | ||||
| 18. Jornada | 10.06.2023 | Ulsan Hyundai FC | - | Jeju United | 5:1 | ||||
| 19. Jornada | 24.06.2023 | Ulsan Hyundai FC | - | Daegu FC | 3:1 | ||||
| 20. Jornada | 02.07.2023 | Gwangju FC | - | Ulsan Hyundai FC | 0:1 |  |
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| 21. Jornada | 08.07.2023 | Pohang Steelers | - | Ulsan Hyundai FC | 0:1 | |
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| 22. Jornada | 12.07.2023 | Ulsan Hyundai FC | - | Incheon United | 1:2 | ||||
| 24. Jornada | 21.07.2023 | Ulsan Hyundai FC | - | Jeju United | 2:1 | ||||
| 25. Jornada | 05.08.2023 | Daegu FC | - | Ulsan Hyundai FC | 0:0 | |
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| 26. Jornada | 12.08.2023 | Gangwon FC | - | Ulsan Hyundai FC | 2:0 |
Corea del Sur