| 1. Jornada | 16.07.2003 | FC Thun | - | FC Aarau | 1:1 | ||||
| 2. Jornada | 22.07.2003 | FC Wil 1900 | - | FC Thun | 1:1 |  |
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| 3. Jornada | 26.07.2003 | Servette FC | - | FC Thun | 5:1 | ||||
| 4. Jornada | 02.08.2003 | FC Thun | - | Grasshopper Club Zürich | 3:2 | ||||
| 5. Jornada | 09.08.2003 | FC St. Gallen | - | FC Thun | 1:1 | ||||
| 6. Jornada | 16.08.2003 | FC Thun | - | Basilea | 0:4 | ||||
| 7. Jornada | 22.08.2003 | BSC Young Boys | - | FC Thun | 2:1 | ||||
| 8. Jornada | 31.08.2003 | FC Thun | - | Neuchâtel Xamax FC | 0:0 | ||||
| 9. Jornada | 03.09.2003 | FC Zürich | - | FC Thun | 4:0 | ||||
| 10. Jornada | 14.09.2003 | FC Aarau | - | FC Thun | 1:2 |  |
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| 11. Jornada | 28.09.2003 | FC Thun | - | FC Wil 1900 | 3:2 | |
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| 12. Jornada | 02.10.2003 | FC Thun | - | Servette FC | 1:1 | ||||
| 13. Jornada | 05.10.2003 | Grasshopper Club Zürich | - | FC Thun | 2:1 | ||||
| 14. Jornada | 26.10.2003 | FC Thun | - | FC St. Gallen | 1:1 | ||||
| 15. Jornada | 29.10.2003 | Basilea | - | FC Thun | 2:0 | ||||
| 16. Jornada | 02.11.2003 | FC Thun | - | BSC Young Boys | 1:3 | ||||
| 17. Jornada | 23.11.2003 | Neuchâtel Xamax FC | - | FC Thun | 0:1 | ||||
| 18. Jornada | 30.11.2003 | FC Thun | - | FC Zürich | 2:0 |
Suiza