Stadium: Court 22 Round: 26 Ground: Clay
| ITF M15 Antalya | 2024/03/27 08:50 | Marcel Zielinski v John Sperle | 7-5,6-4 |
| 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 Antalya | 2024/03/27 07:00 | Jiri Barnat v Sergey Fomin | 6-1,6-2 |
| Czech Republic Extraliga | 2023/12/17 10:00 | Jiri Jenicek v Jiri Barnat | 6-3,4-6,1-6 |
| Czech Republic Extraliga | 2023/12/14 09:00 | Jiri Barnat v Vojtech Mares | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2023/11/29 12:10 | Mees Rottgering v Jiri Barnat | 6-2,6-4 |
| ITF M15 Sharm El Sheikh | 2023/11/25 08:00 | Vadym Ursu v Jiri Barnat | 6-4,7-5 |
| ITF M15 Sharm El Sheikh | 2023/11/24 08:00 | Jiri Barnat v Yurii Dzhavakian | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2023/11/23 08:00 | Jiri Barnat v Jan Hrazdil | 6-7,6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2023/11/22 09:35 | Jiri Barnat v Karlo Cubelic | 6-0,4-6,6-3 |