| 1. Round | 16/08/1989 | RSC Charleroi | - | KRC Mechelen | 3:0 | ||||
| 2. Round | 19/08/1989 | KRC Mechelen | - | Sporting Lokeren | 3:4 | ||||
| 3. Round | 30/08/1989 | RSC Anderlecht | - | KRC Mechelen | 1:0 | ||||
| 4. Round | 09/09/1989 | KRC Mechelen | - | Cercle Brugge | 1:2 | ||||
| 5. Round | 16/09/1989 | Sint-Truidense VV | - | KRC Mechelen | 0:0 | ||||
| 6. Round | 23/09/1989 | KRC Mechelen | - | K. Beerschot VAV | 1:3 | ||||
| 7. Round | 30/09/1989 | Standard Liège | - | KRC Mechelen | 2:1 | ||||
| 8. Round | 07/10/1989 | KRC Mechelen | - | KV Kortrijk | 0:0 | ||||
| 9. Round | 14/10/1989 | KV Mechelen | - | KRC Mechelen | 5:1 | ||||
| 10. Round | 21/10/1989 | KRC Mechelen | - | KAA Gent | 2:0 | ||||
| 11. Round | 05/11/1989 | KFC Germinal Ekeren | - | KRC Mechelen | 2:0 |  |
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| 12. Round | 11/11/1989 | KRC Mechelen | - | Club Brugge KV | 1:2 | ||||
| 13. Round | 18/11/1989 | Lierse SK (old) | - | KRC Mechelen | 0:0 | ||||
| 21. Round | 11/02/1990 | Cercle Brugge | - | KRC Mechelen | 4:1 | ||||
| 26. Round | 17/03/1990 | KRC Mechelen | - | KV Mechelen | 0:4 | ||||
| 29. Round | 08/04/1990 | Club Brugge KV | - | KRC Mechelen | 4:0 | ||||
| 30. Round | 14/04/1990 | KRC Mechelen | - | Lierse SK (old) | 1:1 | ||||
| 31. Round | 21/04/1990 | KSK Beveren | - | KRC Mechelen | 3:4 |
Belgium