2. Round | 10/03/2018 | Ulsan Hyundai FC | - | Sangju Sangmu | 0:2 | ||||
3. Round | 18/03/2018 | Ulsan Hyundai FC | - | Jeju United | 0:1 | ||||
6. Round | 11/04/2018 | Daegu FC | - | Ulsan Hyundai FC | 0:2 | ||||
7. Round | 14/04/2018 | Ulsan Hyundai FC | - | FC Seoul | 1:0 | ||||
8. Round | 22/04/2018 | Gyeongnam FC | - | Ulsan Hyundai FC | 0:0 | ||||
9. Round | 25/04/2018 | Ulsan Hyundai FC | - | Incheon United | 2:1 | ||||
11. Round | 02/05/2018 | Suwon Bluewings | - | Ulsan Hyundai FC | 0:0 | ||||
16. Round | 11/07/2018 | Ulsan Hyundai FC | - | Jeonbuk FC | 0:2 | ||||
21. Round | 05/08/2018 | Jeonnam Dragons | - | Ulsan Hyundai FC | 1:2 | ||||
22. Round | 12/08/2018 | Ulsan Hyundai FC | - | Suwon Bluewings | 1:0 | ||||
23. Round | 15/08/2018 | Gyeongnam FC | - | Ulsan Hyundai FC | 3:3 | ||||
24. Round | 18/08/2018 | Daegu FC | - | Ulsan Hyundai FC | 0:2 | ||||
25. Round | 22/08/2018 | Ulsan Hyundai FC | - | Sangju Sangmu | 4:1 | ||||
26. Round | 25/08/2018 | Ulsan Hyundai FC | - | FC Seoul | 4:1 | ||||
30. Round | 26/09/2018 | Ulsan Hyundai FC | - | Jeju United | 3:2 | ||||
33. Round | 20/10/2018 | Ulsan Hyundai FC | - | Gangwon FC | 2:0 |