| 1. Round | 19/08/2023 | BSC Young Boys [Youth B] | - | FCO St. Gallen [Youth B] | 5:1 | ||||
| 3. Round | 02/09/2023 | FC Aarau [Youth B] | - | FCO St. Gallen [Youth B] | 0:1 | ||||
| 7. Round | 07/10/2023 | Team Ticino [Youth B] | - | FCO St. Gallen [Youth B] | 0:2 |  |
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| 8. Round | 14/10/2023 | Grasshopper Club Zürich [Youth B] | - | FCO St. Gallen [Youth B] | 3:1 | ||||
| 10. Round | 28/10/2023 | FC Basel 1893 [Youth B] | - | FCO St. Gallen [Youth B] | 3:3 | ||||
| 17. Round | 17/02/2024 | FC Winterthur [Youth B] | - | FCO St. Gallen [Youth B] | 3:0 | ||||
| 21. Round | 23/03/2024 | Servette FC [Youth B] | - | FCO St. Gallen [Youth B] | 1:0 | ||||
| 24. Round | 20/04/2024 | FCO St. Gallen [Youth B] | - | FC Thun Berner Oberland [Youth B] | 5:0 | ||||
| 25. Round | 27/04/2024 | FC Luzern [Youth B] | - | FCO St. Gallen [Youth B] | 0:2 | ||||
| 26. Round | 04/05/2024 | FC Lausanne-Sport [Youth B] | - | FCO St. Gallen [Youth B] | 4:0 | |
Switzerland