1. Round | 28/02/2021 | Pohang Steelers | - | Incheon United | 2:1 | ||||
3. Round | 09/03/2021 | Ulsan Hyundai FC | - | Incheon United | 3:1 | ||||
5. Round | 17/03/2021 | Incheon United | - | Suwon FC | 4:1 | ||||
6. Round | 21/03/2021 | Gangwon FC | - | Incheon United | 2:0 | ||||
7. Round | 04/04/2021 | Gwangju FC | - | Incheon United | 2:1 | ||||
9. Round | 11/04/2021 | Jeonbuk FC | - | Incheon United | 5:0 | ||||
10. Round | 17/04/2021 | Incheon United | - | Jeju United | 0:3 | ||||
11. Round | 21/04/2021 | Seongnam FC | - | Incheon United | 1:3 | ||||
12. Round | 25/04/2021 | Incheon United | - | Ulsan Hyundai FC | 0:0 | ||||
14. Round | 08/05/2021 | Daegu FC | - | Incheon United | 3:0 | ||||
15. Round | 11/05/2021 | Incheon United | - | Pohang Steelers | 1:1 |