Stadium: Court 2 Round: 54 Ground: Clay
| ITF - M15 Genova | 2021/06/16 20:20 | Davide Galoppini 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 | Alexander Cozbinov 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 LPD Gran Canaria | 2021/04/29 11:55 | Alexander Weis v Eduard Esteve Lobato | 3-6,2-6 |
| ITF - M15 Genova | 2021/06/16 10:35 | Marcello Serafini v Pedro Boscardin Dias | 3-6,4-6 |
| ITF - M15 Genova | 2021/06/15 10:25 | Marcello Serafini v Maxime Mora | 4-6,6-7 |
| ITF - M15 Genova | 2021/06/14 07:00 | Ignacio Monzon v Marcello Serafini | 5-7,4-6 |
| ITF - M15 Monastir | 2021/05/04 08:00 | Takashi Saito v Marcello Serafini | 7-5,2-6,10-8 |
| ITF - M15 Monastir | 2021/05/03 12:00 | Hugo Pierre v Marcello Serafini | 6-3,4-6,10-12 |
| ITF - M15 Monastir | 2021/05/02 08:00 | Cristian Campese v Marcello Serafini | 1-6,3-6 |
| ITF - M15 Monastir | 2021/04/26 13:30 | Yuta Kawahashi v Marcello Serafini | 6-3,6-1 |
| ITF - M15 Monastir | 2021/04/26 09:00 | Cristian Campese v Marcello Serafini | 3-6,1-6 |