Stadium: Court 1 Round: 27 Ground: Clay
| ITF M15 Szczawno | 2023/08/31 14:35 | Patrick Zahraj v Marcel Zielinski | 6-3,6-3 |
| ITF M15 Koszalin | 2023/09/07 12:00 | Marcel Zielinski v Fryderyk Lechno-Wasiutynski | 6-7,7-5,6-4 |
| ITF M15 Koszalin | 2023/09/06 15:00 | Marcel Zielinski v Bruno Kokot | 6-2,6-2 |
| ITF M15 Szczawno | 2023/08/31 14:35 | Patrick Zahraj v Marcel Zielinski | 6-3,6-3 |
| ITF M15 Szczawno | 2023/08/30 08:35 | Adam Majchrzak v Marcel Zielinski | 2-6,3-6 |
| ITF M15 Huy | 2023/08/25 08:00 | Marcel Zielinski v Felix Corwin | 6-1,1-6,3-6 |
| ITF M15 Huy | 2023/08/23 14:10 | Marcel Zielinski v Lautaro Agustin Falabella | 6-3,6-4 |
| ITF M15 Frankfurt Am Main | 2023/08/09 13:00 | Jakob Schnaitter v Marcel Zielinski | 6-7,6-2,6-2 |
| ITF M15 Eindhoven | 2023/08/03 11:20 | Elmer Moller v Marcel Zielinski | 6-3,6-1 |
| ITF M15 Koszalin | 2023/09/07 13:25 | Patrick Zahraj v Szymon Kielan | 7-6,6-3 |
| ITF M15 Koszalin | 2023/09/06 07:30 | Patrick Zahraj v Federico Marchetti | 7-5,6-1 |
| ITF M15 Szczawno | 2023/09/01 10:10 | Lewie Lane v Patrick Zahraj | 4-6,6-4,6-2 |
| ITF M15 Szczawno | 2023/08/31 14:35 | Patrick Zahraj v Marcel Zielinski | 6-3,6-3 |
| ITF M15 Szczawno | 2023/08/30 10:05 | Patrick Zahraj v Benedikt Henning | 3-6,6-1,6-1 |
| ITF M15 Caslano | 2023/08/24 09:15 | Patrick Zahraj v Rodrigo Alujas | 6-3,6-4 |
| ITF M15 Caslano | 2023/08/22 07:00 | Nicolas Kobelt v Patrick Zahraj | 3-6,1-6 |
| ITF M25 Muttenz | 2023/08/16 10:15 | Patrick Zahraj v Matteo Martineau | 4-6,2-6 |