13. Round | 13/05/2018 | Sangju Sangmu | - | Incheon United | 3:2 | ||||
14. Round | 20/05/2018 | Incheon United | - | Ulsan Hyundai FC | 1:1 | ||||
16. Round | 11/07/2018 | Incheon United | - | Gangwon FC | 3:3 | ||||
18. Round | 18/07/2018 | Suwon Bluewings | - | Incheon United | 5:2 | ||||
19. Round | 22/07/2018 | Incheon United | - | FC Seoul | 2:1 | ||||
27. Round | 02/09/2018 | Incheon United | - | Ulsan Hyundai FC | 3:2 | ||||
28. Round | 15/09/2018 | Incheon United | - | Suwon Bluewings | 0:0 | ||||
30. Round | 26/09/2018 | FC Seoul | - | Incheon United | 1:1 | ||||
32. Round | 06/10/2018 | Daegu FC | - | Incheon United | 1:2 |