| 19. Round | 12/02/2006 | FC Schaffhausen | - | FC St. Gallen | 1:3 |  |
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| 20. Round | 19/02/2006 | FC St. Gallen | - | FC Aarau | 1:1 | |
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| 21. Round | 26/02/2006 | Neuchâtel Xamax FC | - | FC St. Gallen | 2:2 | |
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| 23. Round | 11/03/2006 | FC Zürich | - | FC St. Gallen | 1:0 | ||||
| 24. Round | 19/03/2006 | FC St. Gallen | - | FC Basel 1893 | 2:2 | |
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| 25. Round | 22/03/2006 | Yverdon Sport FC | - | FC St. Gallen | 2:1 | ||||
| 26. Round | 26/03/2006 | FC St. Gallen | - | FC Thun | 1:0 | ||||
| 22. Round | 29/03/2006 | FC St. Gallen | - | BSC Young Boys | 1:3 | ||||
| 27. Round | 02/04/2006 | Grasshopper Club Zürich | - | FC St. Gallen | 2:1 | ||||
| 28. Round | 06/04/2006 | FC St. Gallen | - | Grasshopper Club Zürich | 0:2 | ||||
| 29. Round | 09/04/2006 | FC Thun | - | FC St. Gallen | 3:1 | ||||
| 30. Round | 15/04/2006 | FC St. Gallen | - | Yverdon Sport FC | 2:0 | ||||
| 31. Round | 20/04/2006 | FC Basel 1893 | - | FC St. Gallen | 3:1 | |
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| 33. Round | 29/04/2006 | BSC Young Boys | - | FC St. Gallen | 2:0 | ||||
| 34. Round | 03/05/2006 | FC St. Gallen | - | Neuchâtel Xamax FC | 1:0 | ||||
| 35. Round | 06/05/2006 | FC Aarau | - | FC St. Gallen | 1:0 | ||||
| 36. Round | 14/05/2006 | FC St. Gallen | - | FC Schaffhausen | 3:0 | |
Croatia