15. Round | 08/07/2018 | Daegu FC | - | FC Seoul | 2:2 | ||||
16. Round | 11/07/2018 | Pohang Steelers | - | FC Seoul | 0:3 | ||||
22. Round | 12/08/2018 | Sangju Sangmu | - | FC Seoul | 1:2 | ||||
23. Round | 15/08/2018 | Suwon Bluewings | - | FC Seoul | 1:2 | ||||
25. Round | 22/08/2018 | FC Seoul | - | Pohang Steelers | 0:1 | ||||
28. Round | 16/09/2018 | FC Seoul | - | Daegu FC | 0:2 | ||||
29. Round | 22/09/2018 | Gyeongnam FC | - | FC Seoul | 2:1 | ||||
30. Round | 26/09/2018 | FC Seoul | - | Incheon United | 1:1 | ||||
33. Round | 20/10/2018 | Jeju United | - | FC Seoul | 1:0 |