| 1. Jornada | 26.02.2023 | Jeju United | - | Suwon FC | 0:0 | ||||
| 2. Jornada | 04.03.2023 | Daegu FC | - | Jeju United | 1:1 | ||||
| 3. Jornada | 12.03.2023 | Incheon United | - | Jeju United | 1:0 | ||||
| 4. Jornada | 18.03.2023 | Jeju United | - | FC Seoul | 1:2 |  |
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| 5. Jornada | 02.04.2023 | Jeju United | - | Ulsan Hyundai FC | 1:3 | ||||
| 6. Jornada | 09.04.2023 | Gangwon FC | - | Jeju United | 0:1 | ||||
| 7. Jornada | 15.04.2023 | Suwon Bluewings | - | Jeju United | 2:3 | ||||
| 8. Jornada | 23.04.2023 | Jeju United | - | Jeonbuk FC | 0:2 | ||||
| 9. Jornada | 26.04.2023 | Gwangju FC | - | Jeju United | 0:1 | |
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| 10. Jornada | 30.04.2023 | Daejeon Hana Citizen | - | Jeju United | 0:3 |  |
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| 12. Jornada | 10.05.2023 | Jeju United | - | Incheon United | 2:0 | ||||
| 14. Jornada | 20.05.2023 | FC Seoul | - | Jeju United | 1:1 | ||||
| 29. Jornada | 03.09.2023 | Jeju United | - | Jeonbuk FC | 0:0 | |
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| 30. Jornada | 16.09.2023 | Incheon United | - | Jeju United | 2:1 | ||||
| 31. Jornada | 23.09.2023 | Jeju United | - | FC Seoul | 1:3 | |
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| 33. Jornada | 08.10.2023 | Daejeon Hana Citizen | - | Jeju United | 1:0 |
Corea del Sur