Stadium: Court 20 Round: 25 Ground: Clay
| ITF - M15 Warmbad-Villach | 2021/08/22 09:00 | Peter Heller v Alexander Weis | 6-3,6-4 |
| 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 |
| Challenger - Rovereto | 2023/02/19 18:20 | Federico Arnaboldi v Alexander Weis | 6-3,6-4 |
| Challenger - Cherbourg | 2023/02/12 15:10 | Antoine Ghibaudo v Alexander Weis | 6-3,6-4 |
| Challenger - Tenerife - Calificari | 2023/02/05 11:10 | Daniel Merida Aguilar v Alexander Weis | 6-2,3-6,6-2 |
| Challenger - Tenerife | 2023/01/29 10:00 | Alexander Weis v Gian Marco Moroni | 3-6,4-6 |
| Challenger - Tigre | 2023/01/04 14:05 | Carlos Sanchez Jover v Alexander Weis | 6-4,6-2 |
| ITF - M15 Antalya | 2022/11/27 09:40 | Alex M Pujolras v Alexander Weis | 4-6,0-6 |
| ITF - M15 Antalya | 2022/11/26 13:40 | Alexander Weis v Jorge Martinez Martinez | 6-4,7-6 |
| ITF - M15 Antalya | 2022/11/26 08:55 | Ilya Snitari v Alexander Weis | 6-4,6-7,3-6 |
| ITF - M15 Antalya | 2023/02/23 08:45 | Alex M Pujolras v Peter Heller | 6-3,3-6,6-1 |
| ITF - M15 Antalya | 2023/02/22 08:05 | Peter Heller v Matthias Ujvary | 6-4,6-0 |
| ITF - M25 Nussloch | 2023/01/27 10:00 | Daniel Masur v Peter Heller | 6-3,6-4 |
| ITF - M25 Nussloch | 2023/01/26 11:40 | Peter Heller v Max Hans Rehberg | 7-6,4-6,6-1 |
| ITF - M25 Nussloch | 2023/01/24 11:45 | Yannik Kelm v Peter Heller | 5-7,2-6 |
| ITF - M15 Antalya | 2022/10/28 07:30 | Nicolas Parizzia v Peter Heller | 6-1,6-4 |
| ITF - M15 Antalya | 2022/10/27 07:00 | Kaylan Bigun v Peter Heller | 2-6,2-6 |
| ITF - M15 Antalya | 2022/10/26 09:25 | Lucas Bouquet v Peter Heller | 0-6,1-6 |