Stadium: Court 4 Round: 25 Ground: Clay
| Challenger Meerbusch | 2023/08/07 15:00 | Ergi Kirkin v John Sperle | 7-6,6-3 |
| Challenger Meerbusch | 2023/08/06 09:00 | John Sperle v Tommaso Compagnucci | 6-2,4-6,6-4 |
| Challenger Luedenscheid | 2023/07/30 15:25 | Hady Habib v John Sperle | 3-6,6-1,6-3 |
| ITF M15 Metzingen | 2023/07/26 12:30 | John Sperle v Sander Jong | 2-6,7-5,2-6 |
| ITF M15 Uslar | 2023/07/21 11:25 | Sebastian Prechtel v John Sperle | 6-3,6-1 |
| ITF M15 Uslar | 2023/07/19 17:15 | Dominik Boehler v John Sperle | 1-6,6-4,4-6 |
| ITF M15 Uslar | 2023/07/17 15:45 | John Sperle v Noel Larwig | 6-2,6-2 |
| ITF M15 Uslar | 2023/07/17 10:30 | John Sperle v Lukas Janousek | 6-0,6-4 |
| ITF M15 Eupen | 2023/08/08 14:00 | Ethan Cook v Marcus Walters | 4-6,6-7 |
| ITF M15 Eupen | 2023/08/08 08:00 | Ethan Cook v Thorben Sannen | 6-4,6-2 |
| ITF M15 Eupen | 2023/08/07 07:00 | Ethan Cook v Lars Aregger | 6-3,6-2 |
| ITF M15 Eindhoven | 2023/07/30 07:00 | Ethan Cook v Jip Van Assendelft | 6-4,3-6,4-10 |
| ITF M25 Porto | 2023/07/24 10:00 | Ethan Cook v Karol Malirz | 6-7,3-6 |
| ITF M25 Castelo Branco | 2023/07/19 17:00 | Ethan Cook v Guillaume Dalmasso | 3-6,2-6 |
| ITF M25 Roda de Bara | 2023/07/10 13:00 | Albert Pedrico Kravtsov v Ethan Cook | 3-6,6-4,10-5 |
| ITF M25 Ajaccio | 2023/07/04 08:45 | Petro Orlando Fellin v Ethan Cook | 6-1,6-1 |