| 1. Jornada | 03.03.2018 | Gangwon FC | - | Incheon United | 2:1 | ||||
| 2. Jornada | 10.03.2018 | Incheon United | - | Jeonbuk FC | 3:2 | ||||
| 3. Jornada | 17.03.2018 | Incheon United | - | Daegu FC | 0:0 | ||||
| 4. Jornada | 01.04.2018 | FC Seoul | - | Incheon United | 1:1 |  |
|||
| 5. Jornada | 07.04.2018 | Incheon United | - | Jeonnam Dragons | 2:2 | ||||
| 6. Jornada | 11.04.2018 | Incheon United | - | Sangju Sangmu | 0:1 | ||||
| 7. Jornada | 14.04.2018 | Jeju United | - | Incheon United | 4:2 | ||||
| 8. Jornada | 22.04.2018 | Incheon United | - | Suwon Bluewings | 2:3 | ||||
| 13. Jornada | 13.05.2018 | Sangju Sangmu | - | Incheon United | 3:2 | ||||
| 14. Jornada | 20.05.2018 | Incheon United | - | Ulsan Hyundai FC | 1:1 |
Corea del Sur