| 15. Round | 05/03/2023 | FC Rapperswil-Jona/GC [U18] | - | Servette FC [Youth B] | 0:3 dec. |  |
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| 16. Round | 11/03/2023 | FC Schaffhausen [Youth B] | - | FC Rapperswil-Jona/GC [U18] | 1:0 | ||||
| 17. Round | 19/03/2023 | FC Rapperswil-Jona/GC [U18] | - | Team Zürich [Youth B] | 2:1 |  |
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| 19. Round | 15/04/2023 | Team Liechtenstein [U18] | - | FC Rapperswil-Jona/GC [U18] | 0:1 | ||||
| 20. Round | 22/04/2023 | FC Rapperswil-Jona/GC [U18] | - | FC Luzern [Youth B] | 4:1 | ||||
| 21. Round | 29/04/2023 | Team Südostschweiz [U18] | - | FC Rapperswil-Jona/GC [U18] | 0:2 | ||||
| 22. Round | 07/05/2023 | FC Rapperswil-Jona/GC [U18] | - | FC Basel 1893 [Youth B] | 0:4 | ||||
| 23. Round | 13/05/2023 | BSC Young Boys [Youth B] | - | FC Rapperswil-Jona/GC [U18] | 5:3 | |
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| 24. Round | 03/06/2023 | Team Vaud Lausanne [Youth B] | - | FC Rapperswil-Jona/GC [U18] | 0:2 | ||||
| 25. Round | 10/06/2023 | FC Rapperswil-Jona/GC [U18] | - | Team AFF-FFV Fribourg [U18] | 5:2 | |
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| 26. Round | 17/06/2023 | FC Rapperswil-Jona/GC [U18] | - | FC Concordia/BSC Old Boys [U18] | 2:2 |
Spain