Stadium: Court 3 Round: 14 Ground: Clay
| ITF M25 Kramsach | 2023/07/28 09:00 | Oliver Crawford v Peter Heller | 6-3,6-4 |
| ITF M25 Kramsach | 2023/07/27 13:45 | Kai Wehnelt v Peter Heller | 5-7,4-6 |
| ITF M25 Kramsach | 2023/07/26 10:00 | Peter Heller v Alex Barrena | 6-3,3-6,6-1 |
| ITF M25 Telfs | 2023/07/22 08:00 | Peter Heller v Buvaysar Gadamauri | 6-2,1-6,4-6 |
| ITF M25 Telfs | 2023/07/21 12:00 | Peter Heller v Daniel Siniakov | 6-1,6-0 |
| ITF M25 Telfs | 2023/07/20 09:45 | Peter Heller v Ondrej Horak | 6-1,6-1 |
| ITF M25 Telfs | 2023/07/18 10:00 | Peter Heller v Niklas Schell | 6-3,6-1 |
| ITF M15 Antalya | 2023/04/21 07:30 | Viacheslav Bielinskyi v Peter Heller | 6-7,6-0,6-3 |
| Challenger Verona | 2023/07/23 11:10 | Valentin Royer v Marcello Serafini | 6-2,6-4 |
| Challenger Trieste | 2023/07/20 12:15 | Marcello Serafini v Pedro Martinez | 3-6,5-7 |
| Challenger Trieste | 2023/07/18 15:15 | Carlos Sanchez Jover v Marcello Serafini | 5-7,6-1,6-7 |
| Challenger San Benedetto | 2023/07/11 15:00 | Richard Gasquet v Marcello Serafini | 7-5,6-2 |
| Challenger San Benedetto | 2023/07/10 09:00 | Francesco Forti v Marcello Serafini | 6-1,2-6,3-6 |
| Challenger San Benedetto | 2023/07/09 13:05 | Jacopo Bilardo v Marcello Serafini | 2-6,1-6 |
| Challenger Milan | 2023/07/04 10:55 | Marcello Serafini v Luca Nardi | 6-4,4-6,3-6 |
| Challenger Milan | 2023/07/03 08:00 | Marcello Serafini v Alex M Pujolras | 7-6,6-0 |