4. Round | 18/03/2023 | Jeju United | - | FC Seoul | 1:2 | ||||
5. Round | 02/04/2023 | Jeju United | - | Ulsan Hyundai FC | 1:3 | ||||
6. Round | 09/04/2023 | Gangwon FC | - | Jeju United | 0:1 | ||||
7. Round | 15/04/2023 | Suwon Bluewings | - | Jeju United | 2:3 | ||||
8. Round | 23/04/2023 | Jeju United | - | Jeonbuk FC | 0:2 | ||||
9. Round | 26/04/2023 | Gwangju FC | - | Jeju United | 0:1 | ||||
10. Round | 30/04/2023 | Daejeon Hana Citizen | - | Jeju United | 0:3 | ||||
11. Round | 06/05/2023 | Jeju United | - | Pohang Steelers | 2:1 | ||||
12. Round | 10/05/2023 | Jeju United | - | Incheon United | 2:0 | ||||
15. Round | 27/05/2023 | Jeju United | - | Suwon Bluewings | 2:1 | ||||
17. Round | 06/06/2023 | Pohang Steelers | - | Jeju United | 2:1 |