Stadium: Court 14 Round: 27 Ground: Clay
| ITF M15 Eindhoven | 2023/08/02 11:00 | Elmer Moller v Stian Klaassen | 6-0,6-2 |
| ITF M15 Eindhoven | 2023/08/01 09:55 | Elmer Moller v Lasse Poertner | 6-3,6-0 |
| ITF M15 Vejle | 2023/07/30 08:00 | Alec Deckers v Elmer Moller | 6-4,3-6,6-3 |
| ITF M15 Vejle | 2023/07/29 09:25 | Christian Sigsgaard v Elmer Moller | 2-6,3-6 |
| ITF M15 Vejle | 2023/07/28 12:15 | Lewie Lane v Elmer Moller | 4-6,5-7 |
| ITF M15 Vejle | 2023/07/27 11:00 | Sebastian Eriksson v Elmer Moller | 2-6,6-4,2-6 |
| ITF M15 Vejle | 2023/07/26 08:15 | Carl Emil Overbeck v Elmer Moller | 6-7,3-6 |
| Challenger Amersfoort | 2023/07/20 13:25 | Elmer Moller v Titouan Droguet | 3-6,4-6 |
| ITF M15 Eindhoven | 2023/08/01 15:20 | Alexis Boureau v Marcel Zielinski | 1-6,1-6 |
| ITF M25 Esch/Alzette | 2023/07/13 14:30 | Marcel Zielinski v Brian Bozemoj | 6-2,6-4 |
| ITF M25 Esch/Alzette | 2023/07/12 11:35 | Marcel Zielinski v Boris Fassbender | 6-3,6-1 |
| ITF M15 Sofia | 2023/07/06 08:10 | Matej Dodig v Marcel Zielinski | 6-4,6-2 |
| ITF M15 Sofia | 2023/07/05 09:45 | Alessandro Ingarao v Marcel Zielinski | 0-6,3-6 |
| ITF M15 Kamen | 2023/06/28 10:50 | Matyas Cerny v Marcel Zielinski | 6-4,6-4 |
| ITF M15 Saarlouis | 2023/06/23 16:30 | Marcel Zielinski v Jeffrey Von Der Schulenburg | 6-7,6-2,1-6 |
| ITF M15 Saarlouis | 2023/06/22 09:30 | Marcel Zielinski v Tim Heger | 6-0,6-3 |