Stadium: C1 Round: 26 Ground: Clay
| ITF M25 Muttenz | 2023/08/16 11:25 | Kilian Feldbausch v Jeffrey Von Der Schulenburg | 5-7,4-6 |
| ITF M25 Klosters | 2023/07/05 14:10 | Francois Musitelli v Jeffrey Von Der Schulenburg | 6-3,6-4 |
| ITF M15 Alkmaar | 2023/07/01 13:00 | Jeffrey Von Der Schulenburg v Elmer Moller | 6-4,3-6,0-6 |
| ITF M15 Alkmaar | 2023/06/30 14:00 | Karl Friberg v Jeffrey Von Der Schulenburg | 6-4,6-7,3-6 |
| ITF M15 Alkmaar | 2023/06/29 12:05 | Jeffrey Von Der Schulenburg v Guy Den Ouden | 6-4,3-6,7-5 |
| ITF M15 Alkmaar | 2023/06/28 14:20 | Jeffrey Von Der Schulenburg v Younes Lalami Laaroussi | 7-5,7-5 |
| ITF M15 Saarlouis | 2023/06/25 12:00 | Sander Jong v Jeffrey Von Der Schulenburg | 6-1,6-0 |
| ITF M15 Saarlouis | 2023/06/23 16:30 | Marcel Zielinski v Jeffrey Von Der Schulenburg | 6-7,6-2,1-6 |
| ITF M25 Muttenz | 2023/08/15 12:10 | Jan Sebesta v Tim Handel | 4-6,1-6 |
| ITF M25 Wetzlar | 2023/08/04 14:25 | Tim Handel v Buvaysar Gadamauri | 5-7,5-7 |
| ITF M25 Wetzlar | 2023/08/04 10:00 | Tim Handel v Max Wiskandt | 7-6,1-6,6-2 |
| ITF M25 Wetzlar | 2023/08/03 07:55 | Tim Handel v Markus Malaszszak | 6-3,6-1 |
| Challenger Zug | 2023/07/25 10:30 | Alexander Ritschard v Tim Handel | 6-2,6-1 |
| Challenger Zug | 2023/07/24 09:00 | Eduardo Ribeiro v Tim Handel | 6-7,6-7 |
| Challenger Zug | 2023/07/23 09:00 | Tim Handel v Karl Friberg | 6-4,4-6,7-6 |
| Challenger Karlsruhe | 2023/07/06 13:40 | Zsombor Piros v Tim Handel | 7-6,6-3 |