4. Round | 01/04/2018 | FC Seoul | - | Incheon United | 1:1 | ||||
8. Round | 21/04/2018 | FC Seoul | - | Daegu FC | 3:0 | ||||
9. Round | 25/04/2018 | Jeonnam Dragons | - | FC Seoul | 2:1 | ||||
10. Round | 28/04/2018 | FC Seoul | - | Sangju Sangmu | 0:0 | ||||
11. Round | 02/05/2018 | Gyeongnam FC | - | FC Seoul | 0:0 | ||||
12. Round | 05/05/2018 | FC Seoul | - | Suwon Bluewings | 2:1 | ||||
13. Round | 12/05/2018 | Gangwon FC | - | FC Seoul | 1:1 | ||||
14. Round | 20/05/2018 | FC Seoul | - | Jeonbuk FC | 0:4 | ||||
16. Round | 11/07/2018 | Pohang Steelers | - | FC Seoul | 0:3 | ||||
17. Round | 15/07/2018 | FC Seoul | - | Ulsan Hyundai FC | 1:1 | ||||
19. Round | 22/07/2018 | Incheon United | - | FC Seoul | 2:1 | ||||
20. Round | 28/07/2018 | FC Seoul | - | Gyeongnam FC | 2:3 | ||||
25. Round | 22/08/2018 | FC Seoul | - | Pohang Steelers | 0:1 | ||||
26. Round | 25/08/2018 | Ulsan Hyundai FC | - | FC Seoul | 4:1 |