| 6. Round | 16/09/1988 | BV Veendam | - | RKC Waalwijk | 2:0 | ||||
| 7. Round | 24/09/1988 | RKC Waalwijk | - | AFC Ajax | 3:1 | ||||
| 8. Round | 07/10/1988 | PEC Zwolle '82 | - | RKC Waalwijk | 3:0 | ||||
| 9. Round | 12/10/1988 | RKC Waalwijk | - | Sparta Rotterdam | 2:2 | ||||
| 10. Round | 23/10/1988 | FC Twente | - | RKC Waalwijk | 7:1 | ||||
| 11. Round | 29/10/1988 | RKC Waalwijk | - | Roda JC Kerkrade | 1:4 |
Denmark