Stadium: Center Court Round: 14 Ground: Clay
| Challenger Francavilla | 2023/05/08 11:00 | Giovanni Fonio v Alexander Weis | 6-1,6-2 |
| Challenger Sanremo | 2022/04/03 09:30 | Giovanni Fonio v Alexander Weis | 6-4,6-4 |
| ITF Portugal F1 | 2017/02/26 09:30 | Alexander Weis v Giovanni Fonio | 2-6,2-6 |
| Challenger Skopje | 2023/05/24 09:00 | Francisco Comesana v Giovanni Fonio | 7-6,6-2 |
| Challenger Skopje | 2023/05/22 11:10 | Mili Poljicak v Giovanni Fonio | 4-6,2-6 |
| Challenger Francavilla | 2023/05/12 10:00 | Giovanni Fonio v Alejandro Tabilo | 4-6,6-7 |
| Challenger Francavilla | 2023/05/09 12:20 | Salvatore Caruso v Giovanni Fonio | 6-3,1-6,6-7 |
| Challenger Francavilla | 2023/05/08 11:00 | Giovanni Fonio v Alexander Weis | 6-1,6-2 |
| Challenger Francavilla | 2023/05/07 09:00 | Giovanni Fonio v Andrea Picchione | 6-3,7-5 |
| Challenger Rome | 2023/04/26 08:00 | Marco Trungelliti v Giovanni Fonio | 2-6,6-1,6-2 |
| Challenger Rome | 2023/04/25 08:55 | Giovanni Fonio v Mattia Bellucci | 6-3,6-4 |
| Challenger Skopje | 2023/05/25 10:35 | Dragos Nicolae Madaras v Alexander Weis | 6-3,6-3 |
| Challenger Skopje | 2023/05/24 11:05 | Alexander Weis v Roman Andres Burruchaga | 6-4,6-0 |
| Challenger Skopje | 2023/05/22 11:45 | Alexander Weis v Marko Topo | 6-3,6-3 |
| Challenger Skopje | 2023/05/21 12:25 | Alexander Weis v Edas Butvilas | 6-4,4-6,6-2 |
| Challenger Tunis | 2023/05/17 12:15 | Jesper De Jong v Alexander Weis | 6-4,6-3 |
| Challenger Tunis | 2023/05/16 15:20 | Alexander Weis v Liam Broady | 6-0,5-7,6-3 |
| Challenger Tunis | 2023/05/16 08:30 | Nicolas Mejia v Alexander Weis | 4-6,3-6 |
| Challenger Tunis | 2023/05/14 12:00 | Antoine Hoang v Alexander Weis | 4-6,4-6 |