Stadium: Court 3 Round: 26 Ground: Clay
| ITF M15 Uberlingen | 2023/08/16 09:40 | Christoph Negritu v Arthur Nagel | 6-7,5-7 |
| ITF M15 Uberlingen | 2023/08/14 10:00 | Arthur Nagel v Yash Vardhan Singh | 6-2,6-1 |
| ITF M15 Frankfurt Am Main | 2023/08/07 16:45 | Taym Alazmeh v Arthur Nagel | 7-6,6-2 |
| ITF M15 Frankfurt Am Main | 2023/08/07 10:00 | Vasilios Caripi v Arthur Nagel | 5-7,3-6 |
| ITF M15 Metzingen | 2023/07/27 11:00 | Arthur Nagel v Philip Florig | 2-6,2-6 |
| ITF M15 Metzingen | 2023/07/26 12:30 | Dominik Boehler v Arthur Nagel | 0-6,4-6 |
| ITF M15 Metzingen | 2023/07/24 12:00 | Charlelie Cosnet v Arthur Nagel | 3-6,1-6 |
| ITF M15 Metzingen | 2023/07/23 07:30 | Freek Van Donselaar v Arthur Nagel | 3-6,6-3,6-10 |
| ITF M15 Uberlingen | 2023/08/16 11:25 | Tim Heger v Phil Exner | 6-4,6-2 |
| 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 |