| 7. Round | 26/09/2004 | Lierse SK (old) | - | Sint-Truidense VV | 0:1 |  |
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| 8. Round | 03/10/2004 | KSK Beveren | - | Lierse SK (old) | 2:1 | |
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| 9. Round | 16/10/2004 | Lierse SK (old) | - | KAA Gent | 3:2 | ||||
| 10. Round | 24/10/2004 | KV Oostende | - | Lierse SK (old) | 2:3 | |
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| 18. Round | 15/01/2005 | Standard Liège | - | Lierse SK (old) | 4:1 | ||||
| 19. Round | 22/01/2005 | Lierse SK (old) | - | KVC Westerlo | 3:0 | ||||
| 20. Round | 29/01/2005 | Germinal Beerschot | - | Lierse SK (old) | 2:2 | ||||
| 21. Round | 05/02/2005 | Lierse SK (old) | - | Club Brugge KV | 0:2 | ||||
| 22. Round | 13/02/2005 | RAEC Mons | - | Lierse SK (old) | 4:1 | |
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| 23. Round | 18/02/2005 | Lierse SK (old) | - | RSC Anderlecht | 1:1 | |
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| 24. Round | 09/03/2005 | Sint-Truidense VV | - | Lierse SK (old) | 4:0 | |
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| 29. Round | 16/04/2005 | Sporting Charleroi | - | Lierse SK (old) | 1:0 | ||||
| 30. Round | 24/04/2005 | Lierse SK (old) | - | Cercle Brugge | 2:0 | ||||
| 31. Round | 30/04/2005 | FC Brussels | - | Lierse SK (old) | 3:2 |
Belgium