Stadium: Court 2 Round: 54 Ground: Clay
| ITF M15 Bergamo | 2021/06/21 19:00 | Alexander Weis v Marcello Serafini | 7-5,6-4 |
| ITF M15 Genova | 2021/06/16 20:20 | Galoppini, Davide v Alexander Weis | 6-4,6-3 |
| ITF M15 Skopje | 2021/06/10 09:30 | Alexander Weis v Nicholas David Ionel | 4-6,3-6 |
| ITF M15 Skopje | 2021/06/08 10:30 | Cozbinov, Alexander v Alexander Weis | 5-7,4-6 |
| ITF M15 Skopje | 2021/06/04 10:25 | Alexander Weis v Ryan Nijboer | 6-7,6-7 |
| ITF M15 Skopje | 2021/06/03 08:00 | Alexander Weis v Martin Damm | 6-3,6-2 |
| ITF M15 Skopje | 2021/06/01 11:00 | Mats Rosenkranz v Alexander Weis | 4-6,6-2,0-6 |
| ITF M15 Valldoreix | 2021/05/09 14:00 | Louis Dussin v Alexander Weis | 6-3,6-1 |
| ITF M15 Bergamo | 2021/06/21 22:35 | Federico Iannaccone v Quentin Folliot | 7-5,6-2 |
| ITF M15 Genova | 2021/06/17 17:10 | Federico Iannaccone v Giovanni Fonio | 2-6,6-7 |
| ITF M15 Genova | 2021/06/16 10:20 | Federico Iannaccone v Giacalone, Omar | 7-5,6-1 |
| ITF M15 Genova | 2021/06/15 07:00 | Joncour, Ronan v Federico Iannaccone | 3-6,4-6 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/04 09:00 | Federico Iannaccone v Gergely Madarasz | 5-7,4-6 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/03 14:00 | Federico Iannaccone v Simon Beaupain | 7-6,6-1 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 10:40 | Simon, Tobias v Federico Iannaccone | 1-6,3-6 |
| ITF M15 Valldoreix | 2021/05/10 11:00 | Federico Iannaccone v Bondarevskiy, Yan | 2-6,7-6,6-10 |