Stadium: Rado Center Court Round: 26 Ground: Clay
| ITF M25 Muttenz | 2023/08/16 12:30 | Alexander Weis v Giuseppe La Vela | 7-6,6-4 |
| Challenger San Marino | 2023/08/05 09:00 | Andrea Pellegrino v Alexander Weis | 7-6,7-6 |
| Challenger San Marino | 2023/08/03 14:00 | Alexander Weis v Valentin Vacherot | 6-4,3-6,7-6 |
| Challenger San Marino | 2023/07/31 11:20 | Alexander Weis v Fausto Tabacco | 7-6,6-4 |
| Challenger San Marino | 2023/07/30 15:10 | Alexander Weis v Andrea Picchione | 2-6,6-4,6-2 |
| Challenger Verona | 2023/07/23 14:15 | Alexander Weis v Gonzalo Villanueva | 6-7,6-3,4-6 |
| ATP Gstaad | 2023/07/15 13:30 | Otto Virtanen v Alexander Weis | 6-3,7-6 |
| Challenger San Benedetto | 2023/07/10 09:00 | Alexander Weis v Federico Arnaboldi | 4-6,6-3,6-3 |
| ITF M25 Muttenz | 2023/08/16 09:25 | Andrin Casanova v Noah Lopez | 6-3,6-3 |
| Challenger Zug | 2023/07/23 10:30 | Andrin Casanova v Kyrian Jacquet | 3-6,1-6 |
| ITF M25 Klosters | 2023/07/04 08:35 | Toby Alex Kodat v Andrin Casanova | 6-3,6-1 |
| ITF M25 Klosters | 2023/07/03 11:15 | Jan Sebesta v Andrin Casanova | 2-6,2-6 |
| ITF M15 Celje | 2023/06/28 12:00 | Buvaysar Gadamauri v Andrin Casanova | 3-6,6-1,6-1 |
| ITF M15 Casablanca | 2023/06/22 09:30 | Franco Roncadelli v Andrin Casanova | 6-0,6-0 |
| ITF M15 Casablanca | 2023/06/21 09:00 | Andrin Casanova v Nicolas Bruna | 6-4,7-6 |
| ITF M15 Frascati | 2023/06/06 10:25 | Emilien Voisin v Andrin Casanova | 6-4,6-3 |