Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Eupen | 2023/08/08 08:00 | Stijn Slump v Leon Formella | 6-4,6-2 |
| ITF M15 Xativa | 2023/08/01 15:30 | Stijn Slump v Facundo Juarez | 1-6,4-6 |
| ITF M25 Denia | 2023/07/26 13:25 | Dali Blanch v Stijn Slump | 6-4,7-5 |
| ITF M25 Denia | 2023/07/25 09:35 | Stijn Slump v Jorge Plans | 6-3,6-3 |
| ITF M25 Denia | 2023/07/24 14:30 | Stijn Slump v Albert Pedrico Kravtsov | 7-5,6-3 |
| ITF M25 Denia | 2023/07/23 09:00 | Stijn Slump v Ivan Zaytsev | 6-0,6-4 |
| Challenger Amersfoort | 2023/07/16 09:00 | Mathys Erhard v Stijn Slump | 6-2,6-4 |
| ITF M25 Esch/Alzette | 2023/07/12 09:45 | Stijn Slump v Kai Wehnelt | 1-6,6-3,3-6 |
| ITF M15 Eupen | 2023/08/08 08:00 | Ruben Hartig v Felix Mischker | 6-4,6-7,7-10 |
| ITF M15 Eupen | 2023/08/07 08:00 | Felix Mischker v Raphael Calzi | 7-6,6-4 |
| ITF M15 Xativa | 2023/07/30 15:00 | Felix Mischker v Sergio Callejon Hernando | 6-7,1-6 |
| ITF M15 Metzingen | 2023/07/23 14:00 | Felix Mischker v Stepan Mruzek | 6-1,2-6,5-10 |
| ITF M25 Castelo Branco | 2023/07/19 17:00 | Martyn Pawelski v Felix Mischker | 6-4,6-4 |
| ITF M25 Santa Margherita | 2023/05/01 08:00 | Rocco Piatti v Felix Mischker | 6-1,6-2 |
| ITF M25 Santa Margherita | 2023/04/30 08:00 | Paolo Emilio Cossu Floris v Felix Mischker | 2-6,1-6 |
| ITF M15 Antalya | 2023/04/09 06:30 | Felix Mischker v Takuya Kumasaka | 5-7,1-6 |