Stadium: VOLKSBANK Court Round: 25 Ground: Clay
| ITF M15 Uberlingen | 2023/08/15 08:00 | Tim Heger v Christopher Patzanovsky | 7-6,6-2 |
| ITF M25 Marburg | 2023/07/03 08:00 | Ruben Hartig v Tim Heger | 7-5,1-6,10-8 |
| ITF M15 Saarlouis | 2023/06/22 09:30 | Marcel Zielinski v Tim Heger | 6-0,6-3 |
| ITF M15 Saarlouis | 2023/06/21 11:30 | Tim Heger v Konstantin Cucka | 6-2,6-0 |
| ITF M15 Litija | 2023/06/14 07:30 | Sebastian Prechtel v Tim Heger | 6-3,6-4 |
| ITF M15 Litija | 2023/06/13 07:00 | Corey Gaal v Tim Heger | 6-3,6-7,8-10 |
| ITF M15 Litija | 2023/06/12 07:00 | Kaj Quirijns v Tim Heger | 3-6,4-6 |
| ITF M15 Warmbad-Villach | 2023/05/22 11:10 | Tim Heger v Noah Schlagenhauf | 5-7,6-7 |
| ITF M15 Uberlingen | 2023/08/15 11:00 | Yvo Panak v Phil Exner | 3-6,7-6,5-10 |
| ITF M15 Uberlingen | 2023/08/14 08:00 | Phil Exner v Antoine Walch | 2-6,7-5,12-10 |
| ITF M15 Fayetteville | 2022/11/02 15:00 | Alexander Cozbinov v Phil Exner | 6-4,6-2 |
| ITF M15 Fayetteville | 2022/11/01 15:00 | John Bernard v Phil Exner | 3-6,4-6 |
| ITF M15 Fayetteville | 2022/10/31 14:30 | Phil Exner v Nathan Chavez | 6-2,6-3 |