| 1. Round | 12/08/2023 | Club NXT | - | Lierse Kempenzonen | 3:2 |  |
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| 3. Round | 25/08/2023 | KRC Genk II | - | Club NXT | 0:3 | |
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| 4. Round | 03/09/2023 | Club NXT | - | Patro Eisden MM | 2:2 | |
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| 5. Round | 15/09/2023 | RFC Liège | - | Club NXT | 3:1 | ||||
| 6. Round | 23/09/2023 | Club NXT | - | Standard Liège II | 4:1 | ||||
| 9. Round | 22/10/2023 | Club NXT | - | SK Beveren | 0:3 | ||||
| 10. Round | 28/10/2023 | RFC Seraing | - | Club NXT | 2:1 | |
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| 11. Round | 05/11/2023 | Club NXT | - | K Beerschot VA | 0:2 | ||||
| 12. Round | 10/11/2023 | FCV Dender EH | - | Club NXT | 2:0 | ||||
| 13. Round | 25/11/2023 | Club NXT | - | KV Oostende | 3:3 | |
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| 14. Round | 02/12/2023 | KMSK Deinze | - | Club NXT | 1:3 | ||||
| 18. Round | 21/01/2024 | SK Beveren | - | Club NXT | 0:2 |
Germany