Stadium: Court 09 Round: 29 Ground: Clay
| ITF Italy F23 | 2018/08/17 09:00 | Peter Heller v Alexander Weis | 4-6,6-3,6-4 |
| ITF Italy F15 | 2018/06/21 10:50 | Peter Heller v Alexander Weis | 6-3,6-7,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/21 11:00 | Peter Heller v Gabriel Decamps | 7-5,6-2 |
| ITF M15 Warmbad-Villach | 2021/08/20 12:15 | Peter Heller v Lukas Neumayer | 6-2,3-6,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/19 07:55 | Peter Heller v Maximilian Homberg | 7-5,6-1 |
| ITF M15 Warmbad-Villach | 2021/08/18 08:00 | Peter Heller v Andrea Guerrieri | 6-1,6-1 |
| ITF M25 Wetzlar | 2021/08/08 10:00 | Peter Heller v Christopher Heyman | 6-4,6-7,6-4 |
| ITF M25 Wetzlar | 2021/08/07 11:00 | David Pichler v Peter Heller | 3-6,7-5,3-6 |
| ITF M25 Wetzlar | 2021/08/06 15:55 | Constantin Schmitz v Peter Heller | 3-6,7-5,1-6 |
| ITF M25 Wetzlar | 2021/08/05 09:00 | Georgii Kravchenko v Peter Heller | 6-7,2-6 |
| ITF M15 Warmbad-Villach | 2021/08/20 10:10 | Alexander Weis v Jakob Aichhorn | 6-1,0-6,6-2 |
| ITF M15 Warmbad-Villach | 2021/08/18 09:40 | Alexander Weis v Philip Bachmaier | 6-1,7-5 |
| 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 | Riccardo Balzerani 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 | Gabriel Alejandro Hidalgo v Alexander Weis | 6-2,6-7,7-5 |