| 1. Jornada | 16.07.2003 | FC Thun | - | FC Aarau | 1:1 | ||||
| 2. Jornada | 19.07.2003 | FC Aarau | - | Grasshopper Club Zürich | 2:1 | ||||
| 3. Jornada | 26.07.2003 | FC St. Gallen | - | FC Aarau | 0:0 | ||||
| 4. Jornada | 02.08.2003 | FC Aarau | - | Servette FC | 1:1 | ||||
| 5. Jornada | 09.08.2003 | Basilea | - | FC Aarau | 3:1 | ||||
| 6. Jornada | 17.08.2003 | FC Aarau | - | BSC Young Boys | 3:1 | ||||
| 7. Jornada | 23.08.2003 | Neuchâtel Xamax FC | - | FC Aarau | 0:1 | ||||
| 8. Jornada | 30.08.2003 | FC Aarau | - | FC Zürich | 3:3 | ||||
| 9. Jornada | 03.09.2003 | FC Wil 1900 | - | FC Aarau | 1:0 | ||||
| 10. Jornada | 14.09.2003 | FC Aarau | - | FC Thun | 1:2 | ||||
| 11. Jornada | 28.09.2003 | Grasshopper Club Zürich | - | FC Aarau | 2:3 | ||||
| 12. Jornada | 02.10.2003 | FC Aarau | - | FC St. Gallen | 3:1 | ||||
| 13. Jornada | 05.10.2003 | Servette FC | - | FC Aarau | 3:1 | ||||
| 14. Jornada | 26.10.2003 | FC Aarau | - | Basilea | 2:2 | ||||
| 15. Jornada | 29.10.2003 | BSC Young Boys | - | FC Aarau | 5:3 |
Suiza