3. Round | 18/03/2018 | Jeonbuk FC | - | FC Seoul | 2:1 | ||||
4. Round | 01/04/2018 | FC Seoul | - | Incheon United | 1:1 | ||||
5. Round | 08/04/2018 | Suwon Bluewings | - | FC Seoul | 0:0 | ||||
6. Round | 11/04/2018 | FC Seoul | - | Pohang Steelers | 2:1 | ||||
8. Round | 21/04/2018 | FC Seoul | - | Daegu FC | 3:0 | ||||
9. Round | 25/04/2018 | Jeonnam Dragons | - | FC Seoul | 2:1 | ||||
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 | ||||
15. Round | 08/07/2018 | Daegu FC | - | FC Seoul | 2:2 | ||||
16. Round | 11/07/2018 | Pohang Steelers | - | FC Seoul | 0:3 | ||||
20. Round | 28/07/2018 | FC Seoul | - | Gyeongnam FC | 2:3 | ||||
21. Round | 04/08/2018 | FC Seoul | - | Jeju United | 3:0 |