Estádio: Court 2 Kuhstall Round: 25 Ground: Clay
| ITF - M15 Ueberlingen | 2023/08/20 12:00 | Max Hans Rehberg v Jakob Schnaitter | 7-6,1-6,2-6 |
| ITF - M15 Ueberlingen | 2023/08/19 10:00 | Arthur Nagel v Jakob Schnaitter | 2-6,4-6 |
| ITF - M15 Ueberlingen | 2023/08/18 10:00 | Lasse Poertner v Jakob Schnaitter | 2-6,4-6 |
| ITF - M15 Ueberlingen | 2023/08/17 10:05 | Jakob Schnaitter v Peter Heller | 1-6,7-5,6-4 |
| ITF - M15 Ueberlingen | 2023/08/16 13:10 | Jakob Schnaitter v Justin Engel | 7-6,6-1 |
| ITF - M15 Frankfurt am Main | 2023/08/13 09:00 | Lucas Gerch v Jakob Schnaitter | 6-4,6-1 |
| ITF - M15 Frankfurt am Main | 2023/08/11 10:00 | Aleksandre Metreveli v Jakob Schnaitter | 6-7,2-6 |
| ITF - M15 Frankfurt am Main | 2023/08/09 13:00 | Jakob Schnaitter v Marcel Zielinski | 6-7,6-2,6-2 |
| ITF - M15 Huy | 2023/08/23 14:30 | Yannik Kelm v Jurriaan Bol | 6-7,1-6 |
| ITF - M15 Kottingbrunn | 2023/08/17 09:35 | Neil Oberleitner v Yannik Kelm | 6-4,7-6 |
| ITF - M15 Kottingbrunn | 2023/08/16 10:00 | Dominik Kellovsky v Yannik Kelm | 6-7,3-6 |
| ITF - M15 Frankfurt am Main | 2023/08/10 15:00 | Yannik Kelm v Florian Broska | 4-6,6-4,2-6 |
| ITF - M15 Frankfurt am Main | 2023/08/09 12:00 | Taym Alazmeh v Yannik Kelm | 6-7,6-3,1-6 |
| ITF - M15 Metzingen | 2023/07/27 11:00 | Stefan Popovic v Yannik Kelm | 6-4,4-6,6-2 |
| ITF - M15 Metzingen | 2023/07/26 11:00 | Leopold Zima v Yannik Kelm | 5-7,6-2,1-6 |
| ITF - M15 Monastir | 2023/07/12 10:25 | Yassine Smiej v Yannik Kelm | 6-4,7-5 |