| 1. Round | 02/09/2023 | SV Zulte Waregem [U18] | - | KV Mechelen [U18] | 3:2 | ||||
| 3. Round | 23/09/2023 | KV Mechelen [U18] | - | Standard Liège [U18] | 1:3 | ||||
| 4. Round | 30/09/2023 | Club Brugge KV [U18] | - | KV Mechelen [U18] | 1:1 | ||||
| 5. Round | 07/10/2023 | KAA Gent [U18] | - | KV Mechelen [U18] | 8:1 | ||||
| 6. Round | 21/10/2023 | KV Mechelen [U18] | - | KRC Genk [U18] | 0:2 | ||||
| 7. Round | 28/10/2023 | Sporting Charleroi [U18] | - | KV Mechelen [U18] | 3:1 | ||||
| 13. Round | 27/01/2024 | KV Mechelen [U18] | - | Club Brugge KV [U18] | 1:4 | ||||
| 14. Round | 03/02/2024 | Royal Antwerp FC [U18] | - | KV Mechelen [U18] | 4:2 | ||||
| 12. Round | 10/02/2024 | KV Mechelen [U18] | - | KAA Gent [U18] | 1:4 |
Belgium