15. Round | 21/06/2017 | Ulsan Hyundai FC | - | Jeju United | 1:0 | ||||
16. Round | 24/06/2017 | Jeju United | - | Pohang Steelers | 3:0 | ||||
17. Round | 28/06/2017 | Jeju United | - | Incheon United | 1:1 | ||||
18. Round | 02/07/2017 | Jeonnam Dragons | - | Jeju United | 2:2 | ||||
19. Round | 09/07/2017 | Suwon Bluewings | - | Jeju United | 1:0 | ||||
20. Round | 12/07/2017 | Jeju United | - | Jeonbuk FC | 2:1 | ||||
24. Round | 02/08/2017 | Jeju United | - | Daegu FC | 2:0 | ||||
25. Round | 05/08/2017 | Incheon United | - | Jeju United | 0:0 | ||||
30. Round | 17/09/2017 | Jeju United | - | Ulsan Hyundai FC | 2:1 | ||||
31. Round | 20/09/2017 | Suwon Bluewings | - | Jeju United | 2:3 | ||||
33. Round | 01/10/2017 | Jeju United | - | Gwangju FC | 1:1 | ||||
28. Round | 08/10/2017 | Jeju United | - | Jeonbuk FC | 0:1 |