1. Round | 01/03/2018 | Jeonbuk FC | - | Ulsan Hyundai FC | 2:0 | ||||
4. Round | 31/03/2018 | Pohang Steelers | - | Ulsan Hyundai FC | 2:1 | ||||
5. Round | 08/04/2018 | Ulsan Hyundai FC | - | Gangwon FC | 3:1 | ||||
6. Round | 11/04/2018 | Daegu FC | - | Ulsan Hyundai FC | 0:2 | ||||
9. Round | 25/04/2018 | Ulsan Hyundai FC | - | Incheon United | 2:1 | ||||
11. Round | 02/05/2018 | Suwon Bluewings | - | Ulsan Hyundai FC | 0:0 | ||||
13. Round | 13/05/2018 | Ulsan Hyundai FC | - | Gyeongnam FC | 1:1 | ||||
14. Round | 20/05/2018 | Incheon United | - | Ulsan Hyundai FC | 1:1 | ||||
15. Round | 08/07/2018 | Sangju Sangmu | - | Ulsan Hyundai FC | 2:3 | ||||
16. Round | 11/07/2018 | Ulsan Hyundai FC | - | Jeonbuk FC | 0:2 |