1. Round | 01/03/2021 | Ulsan Hyundai FC | - | Gangwon FC | 5:0 | ||||
2. Round | 06/03/2021 | Gwangju FC | - | Ulsan Hyundai FC | 0:1 | ||||
3. Round | 09/03/2021 | Ulsan Hyundai FC | - | Incheon United | 3:1 | ||||
5. Round | 16/03/2021 | Ulsan Hyundai FC | - | Jeju United | 0:0 | ||||
6. Round | 21/03/2021 | Daegu FC | - | Ulsan Hyundai FC | 2:1 | ||||
7. Round | 03/04/2021 | Seongnam FC | - | Ulsan Hyundai FC | 0:1 | ||||
10. Round | 18/04/2021 | Suwon Bluewings | - | Ulsan Hyundai FC | 3:0 |