| 8. Jornada | 22.04.2023 | Ulsan Hyundai FC | - | Pohang Steelers | 2:2 | ||||
| 11. Jornada | 05.05.2023 | Daegu FC | - | Ulsan Hyundai FC | 0:3 |  |
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| 12. Jornada | 09.05.2023 | Ulsan Hyundai FC | - | Gangwon FC | 1:0 | ||||
| 14. Jornada | 21.05.2023 | Suwon Bluewings | - | Ulsan Hyundai FC | 2:3 | ||||
| 15. Jornada | 28.05.2023 | Ulsan Hyundai FC | - | Daejeon Hana Citizen | 3:3 | ||||
| 16. Jornada | 03.06.2023 | Jeonbuk FC | - | Ulsan Hyundai FC | 2:0 | ||||
| 17. Jornada | 06.06.2023 | Suwon FC | - | Ulsan Hyundai FC | 1:3 | ||||
| 23. Jornada | 15.07.2023 | Suwon Bluewings | - | Ulsan Hyundai FC | 3:1 | ||||
| 27. Jornada | 19.08.2023 | Ulsan Hyundai FC | - | Jeonbuk FC | 1:0 | ||||
| 28. Jornada | 27.08.2023 | FC Seoul | - | Ulsan Hyundai FC | 2:2 | ||||
| 31. Jornada | 24.09.2023 | Suwon FC | - | Ulsan Hyundai FC | 2:3 |
Corea del Sur