| 1. Round | 05/08/2023 | SR Delémont | - | FC St. Gallen II | 2:1 | ||||
| 6. Round | 09/09/2023 | FC St. Gallen II | - | FC Basel 1893 II | 1:2 |  |
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| 12. Round | 18/10/2023 | SC Kriens | - | FC St. Gallen II | 3:2 | ||||
| 14. Round | 28/10/2023 | FC Bulle | - | FC St. Gallen II | 2:2 | ||||
| 17. Round | 19/11/2023 | FC St. Gallen II | - | Etoile Carouge FC | 0:2 | ||||
| 18. Round | 25/11/2023 | FC St. Gallen II | - | SR Delémont | 0:2 | ||||
| 24. Round | 23/03/2024 | FC St. Gallen II | - | FC Breitenrain Bern | 4:0 | ||||
| 27. Round | 13/04/2024 | BSC Young Boys II | - | FC St. Gallen II | 3:1 | |
Germany