| 1. Round | 16/08/1990 | RSC Charleroi | - | KSV Waregem | 1:0 | ||||
| 2. Round | 21/08/1990 | KSV Waregem | - | Standard Liège | 1:1 | ||||
| 3. Round | 28/08/1990 | K. Beerschot VAV | - | KSV Waregem | 1:1 | ||||
| 4. Round | 01/09/1990 | KSV Waregem | - | KRC Genk | 4:0 | ||||
| 6. Round | 21/09/1990 | KV Mechelen | - | KSV Waregem | 1:0 | ||||
| 7. Round | 29/09/1990 | KSV Waregem | - | Sporting Lokeren | 1:1 | ||||
| 8. Round | 07/10/1990 | Cercle Brugge | - | KSV Waregem | 3:0 | ||||
| 9. Round | 11/10/1990 | KSV Waregem | - | Royal Antwerp FC | 1:5 | ||||
| 10. Round | 20/10/1990 | Sint-Truidense VV | - | KSV Waregem | 3:1 | ||||
| 17. Round | 08/12/1990 | KSV Waregem | - | Club Brugge KV | 2:2 |
Belgium