Stadium: Court 3 Round: 28 Ground: Clay
| ITF M15 Telde | 2023/04/21 09:00 | Kai Lemstra v Ignacio Buse | 6-4,6-2 |
| ITF M15 Telde | 2023/04/20 10:30 | Alberto Barroso Campos v Kai Lemstra | 5-7,6-3,1-6 |
| ITF M15 Telde | 2023/04/19 11:00 | Noah Lopez v Kai Lemstra | 6-7,4-6 |
| ITF M15 Telde | 2023/04/17 08:00 | Kai Lemstra v Philipp Pavlenko | 7-6,4-6,10-8 |
| ITF M15 Telde | 2023/04/11 09:00 | Kai Lemstra v Diego A B Sanchez | 0-6,3-6 |
| ITF M15 Telde | 2023/04/10 07:00 | Kai Lemstra v Alen Moritz Hodzic | 6-1,2-6,10-7 |
| ITF M15 Telde | 2023/04/09 07:00 | Kai Lemstra v Richard Zusman | 4-6,6-1,10-6 |
| ITF M15 Heraklion | 2023/03/23 10:05 | Kai Lemstra v Sebastian Gima | 1-6,1-6 |
| ITF M15 Telde | 2023/04/21 09:00 | Marcel Zielinski v Martin Cuevas | 6-4,6-1 |
| ITF M15 Telde | 2023/04/20 12:30 | Jorge Martinez Martinez v Marcel Zielinski | 3-6,2-6 |
| ITF M15 Telde | 2023/04/18 08:00 | Marcel Zielinski v Benjamin Winter Lopez | 3-6,6-2,6-4 |
| ITF M15 Telde | 2023/04/17 08:00 | Marcel Zielinski v Ian Luca Cervantes Tomas | 6-4,6-2 |
| ITF M15 Telde | 2023/04/16 08:00 | Marcel Zielinski v Iker Urribarrens | 7-6,6-2 |
| ITF M15 Telde | 2023/04/14 09:00 | Marcel Zielinski v Vilius Gaubas | 4-6,2-6 |
| ITF M15 Telde | 2023/04/13 09:00 | Michael Zhu v Marcel Zielinski | 2-6,1-6 |
| ITF M15 Telde | 2023/04/11 10:40 | Rodrigo Mora Clement v Marcel Zielinski | 6-4,0-6,0-6 |