| 1. Round | 24/08/2020 | Lommel SK | - | RFC Seraing | 3:5 | ||||
| 2. Round | 28/08/2020 | RFC Seraing | - | KMSK Deinze | 3:2 | ||||
| 5. Round | 29/09/2020 | Lierse Kempenzonen | - | RFC Seraing | 2:5 | ||||
| 6. Round | 02/10/2020 | RFC Seraing | - | Club NXT | 6:1 | ||||
| 8. Round | 25/10/2020 | RFC Seraing | - | Lommel SK | 1:0 |  |
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| 9. Round | 15/11/2020 | KMSK Deinze | - | RFC Seraing | 3:0 | ||||
| 13. Round | 04/12/2020 | Club NXT | - | RFC Seraing | 0:4 | ||||
| 15. Round | 20/12/2020 | KMSK Deinze | - | RFC Seraing | 0:0 | ||||
| 16. Round | 24/01/2021 | KVC Westerlo | - | RFC Seraing | 4:3 | ||||
| 17. Round | 31/01/2021 | RFC Seraing | - | Club NXT | 2:1 | ||||
| 23. Round | 14/03/2021 | Club NXT | - | RFC Seraing | 0:1 |
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