Stadium: Court 04 Round: 25 Ground: Clay
| ITF M25 Bolzano | 2021/08/07 09:00 | Matteo Arnaldi v Alexander Weis | 6-0,6-1 |
| ITF M25 Bolzano | 2021/08/06 10:25 | Federico Arnaboldi v Alexander Weis | 7-5,1-6,1-6 |
| ITF M25 Bolzano | 2021/08/05 10:25 | Alexander Weis v Andrea Gola | 6-2,6-0 |
| ITF M25 Bolzano | 2021/08/04 08:35 | Balzerani, Riccardo v Alexander Weis | 3-6,3-6 |
| ITF M25 Bolzano | 2021/08/03 08:30 | Alexander Weis v Daniel Dutra Da Silva | 7-6,7-6 |
| ITF M15 Esch/Alzette | 2021/07/22 10:00 | Hidalgo, Gabriel Alejandro v Alexander Weis | 6-2,6-7,7-5 |
| ITF M15 Esch/Alzette | 2021/07/21 09:00 | von Der Schulenburg, Jeffrey v Alexander Weis | 4-6,4-6 |
| ITF M15 Esch/Alzette | 2021/07/20 11:00 | Alexander Weis v Gauthier Onclin | 7-6,2-6,7-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 08:00 | Bachmaier, Philip v Ondrej Horak | 6-2,6-0 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Bachmaier, Philip v Achondo, Gonzalo | 6-1,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/16 07:00 | Bachmaier, Philip v Tomic, David | 6-3,6-1 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 13:15 | Pawel Juszczak v Bachmaier, Philip | 7-6,6-1 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/04 15:00 | Bachmaier, Philip v Marek Gengel | 6-3,6-4 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 15:15 | Bachmaier, Philip v Postolka, Roman | 6-2,6-3 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 11:40 | Bachmaier, Philip v Karol Filar | 6-2,6-3 |
| ITF M25 Kottingbrunn | 2021/07/20 11:10 | Nejedly, Pavel v Bachmaier, Philip | 6-4,7-6 |