| 2. Round | 21/08/1990 | RWD Molenbeek | - | RSC Charleroi | 1:1 | ||||
| 3. Round | 28/08/1990 | Standard Liège | - | RWD Molenbeek | 1:0 | ||||
| 4. Round | 01/09/1990 | RWD Molenbeek | - | K. Beerschot VAV | 4:1 | ||||
| 1. Round | 04/09/1990 | Club Brugge KV | - | RWD Molenbeek | 2:0 | ||||
| 5. Round | 15/09/1990 | KSV Waregem | - | RWD Molenbeek | 2:0 | ||||
| 6. Round | 22/09/1990 | RWD Molenbeek | - | KRC Genk | 2:0 | ||||
| 7. Round | 28/09/1990 | RWD Molenbeek | - | KV Mechelen | 0:1 | ||||
| 8. Round | 05/10/1990 | Sporting Lokeren | - | RWD Molenbeek | 3:0 | ||||
| 9. Round | 10/10/1990 | RWD Molenbeek | - | Cercle Brugge | 4:3 | ||||
| 16. Round | 01/12/1990 | KFC Germinal Ekeren | - | RWD Molenbeek | 2:0 | ||||
| 17. Round | 08/12/1990 | RWD Molenbeek | - | Lierse SK (old) | 0:0 |  |
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| 18. Round | 13/12/1990 | RWD Molenbeek | - | Club Brugge KV | 0:1 |
Belgium