3. Round | 18/03/2018 | Ulsan Hyundai FC | - | Jeju United | 0:1 | ||||
4. Round | 31/03/2018 | Pohang Steelers | - | Ulsan Hyundai FC | 2:1 | ||||
6. Round | 11/04/2018 | Daegu FC | - | Ulsan Hyundai FC | 0:2 | ||||
8. Round | 22/04/2018 | Gyeongnam FC | - | Ulsan Hyundai FC | 0:0 | ||||
9. Round | 25/04/2018 | Ulsan Hyundai FC | - | Incheon United | 2:1 | ||||
10. Round | 28/04/2018 | Ulsan Hyundai FC | - | Jeonnam Dragons | 1:1 | ||||
11. Round | 02/05/2018 | Suwon Bluewings | - | Ulsan Hyundai FC | 0:0 | ||||
12. Round | 05/05/2018 | Ulsan Hyundai FC | - | Pohang Steelers | 2:1 | ||||
14. Round | 20/05/2018 | Incheon United | - | Ulsan Hyundai FC | 1:1 |