| 1. Round | 10/08/2003 | Excelsior Mouscron | - | Standard Liège | 2:2 | ||||
| 2. Round | 17/08/2003 | RAEC Mons | - | Excelsior Mouscron | 3:3 | ||||
| 4. Round | 31/08/2003 | KRC Genk | - | Excelsior Mouscron | 2:0 | ||||
| 5. Round | 14/09/2003 | Excelsior Mouscron | - | Cercle Brugge | 4:0 |  |
|||
| 6. Round | 20/09/2003 | RAA La Louviére | - | Excelsior Mouscron | 1:2 | ||||
| 7. Round | 27/09/2003 | Excelsior Mouscron | - | Royal Antwerp FC | 2:0 | |
|||
| 8. Round | 04/10/2003 | KAA Gent | - | Excelsior Mouscron | 0:0 | ||||
| 9. Round | 18/10/2003 | Excelsior Mouscron | - | Sint-Truidense VV | 2:1 | |
|||
| 11. Round | 31/10/2003 | Excelsior Mouscron | - | RSC Anderlecht | 0:1 | ||||
| 12. Round | 08/11/2003 | KVC Westerlo | - | Excelsior Mouscron | 1:1 | ||||
| 13. Round | 22/11/2003 | Excelsior Mouscron | - | Koninklijke Heusden-Zolder SK | 2:1 | ||||
| 14. Round | 30/11/2003 | Club Brugge KV | - | Excelsior Mouscron | 4:2 | ||||
| 15. Round | 06/12/2003 | Excelsior Mouscron | - | Sporting Charleroi | 3:0 | ||||
| 19. Round | 24/01/2004 | Excelsior Mouscron | - | RAEC Mons | 3:2 |  |
|||
| 20. Round | 01/02/2004 | Lierse SK (old) | - | Excelsior Mouscron | 2:2 | |
|||
| 21. Round | 08/02/2004 | Excelsior Mouscron | - | KRC Genk | 3:1 |
Belgium