| 3. Round | 25/07/1998 | Neuchâtel Xamax FC | - | FC Aarau | 0:0 | ||||
| 4. Round | 31/07/1998 | FC Zürich | - | Neuchâtel Xamax FC | 1:1 |  |
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| 5. Round | 07/08/1998 | Neuchâtel Xamax FC | - | Servette FC | 1:1 | ||||
| 6. Round | 15/08/1998 | FC Basel 1893 | - | Neuchâtel Xamax FC | 2:0 | |
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| 7. Round | 22/08/1998 | Neuchâtel Xamax FC | - | FC Luzern | 1:1 | ||||
| 8. Round | 28/08/1998 | Neuchâtel Xamax FC | - | FC St. Gallen | 2:0 | ||||
| 9. Round | 05/09/1998 | Grasshopper Club Zürich | - | Neuchâtel Xamax FC | 1:1 | |
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| 10. Round | 12/09/1998 | Neuchâtel Xamax FC | - | Lausanne Sports | 4:1 | ||||
| 11. Round | 19/09/1998 | BSC Young Boys | - | Neuchâtel Xamax FC | 2:3 | |
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| 14. Round | 18/10/1998 | FC Aarau | - | Neuchâtel Xamax FC | 0:2 | ||||
| 15. Round | 24/10/1998 | Neuchâtel Xamax FC | - | FC Zürich | 1:1 | ||||
| 16. Round | 01/11/1998 | Servette FC | - | Neuchâtel Xamax FC | 1:1 | |
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| 17. Round | 07/11/1998 | Neuchâtel Xamax FC | - | FC Basel 1893 | 3:1 | |
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| 18. Round | 15/11/1998 | FC Luzern | - | Neuchâtel Xamax FC | 1:1 | |
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| 20. Round | 29/11/1998 | Neuchâtel Xamax FC | - | Grasshopper Club Zürich | 0:2 | |
Cameroon