1. Round | 28/02/2021 | Pohang Steelers | - | Incheon United | 2:1 | ||||
2. Round | 06/03/2021 | Incheon United | - | Daegu FC | 2:1 | ||||
3. Round | 09/03/2021 | Ulsan Hyundai FC | - | Incheon United | 3:1 | ||||
4. Round | 13/03/2021 | Incheon United | - | FC Seoul | 0:1 | ||||
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 | ||||
10. Round | 17/04/2021 | Incheon United | - | Jeju United | 0:3 |