Round: 26 Ground: Clay
| ITF M15 Antalya | 2024/03/21 07:00 | Marcel Zielinski v Ioan Alexandru Chirita | 6-7,1-6 |
| ITF M15 Antalya | 2024/03/13 07:00 | Marcel Zielinski v Jordi Garcia Mestre | 4-6,1-6 |
| ITF M25 Hammamet | 2024/02/14 13:30 | Daniel Bagnolini v Marcel Zielinski | 6-4,6-3 |
| ITF M25 Hammamet | 2024/02/06 13:50 | Oscar Jose Gutierrez v Marcel Zielinski | 6-3,6-0 |
| ITF M15 Antalya | 2023/12/20 07:00 | Marcel Zielinski v Milos Mikovic | 3-6,7-5,3-6 |
| ITF M15 Antalya | 2023/12/13 09:10 | Emilien Voisin v Marcel Zielinski | 6-1,6-2 |
| ITF M15 Monastir | 2023/11/23 13:30 | Marcel Zielinski v Cyril Vandermeersch | 3-6,2-6 |
| ITF M15 Monastir | 2023/11/21 08:00 | Marcel Zielinski v Jakub Filip | 7-5,6-2 |
| ITF M15 Antalya | 2024/03/22 10:05 | Justin Engel v Joel Schwaerzler | 1-6,0-6 |
| ITF M15 Antalya | 2024/03/21 10:20 | Ioan Alexandru Chirita v Justin Engel | 6-7,2-6 |
| ITF M15 Antalya | 2024/03/20 14:15 | Louroi Martinez v Justin Engel | 7-6,2-6,2-6 |
| ITF M15 Oberhaching | 2024/02/13 11:50 | Justin Engel v Tom Gentzsch | 1-6,2-6 |
| ITF M15 Antalya | 2023/12/07 06:30 | Justin Engel v Evgeny Tyurnev | 4-6,3-6 |
| ITF M15 Antalya | 2023/12/05 09:05 | Mert Alkaya v Justin Engel | 5-7,6-3,7-10 |
| ITF M15 Antalya | 2023/12/04 13:00 | Gabriel Schenekenberg v Justin Engel | 5-7,4-6 |
| ITF M15 Antalya | 2023/12/03 07:00 | Dmitrii Vasilev v Justin Engel | 1-6,5-7 |