Stadium: Court 3 Round: 25 Ground: Clay
| ITF M15 Antalya | 2024/03/27 08:50 | Marcel Zielinski v John Sperle | 7-5,6-4 |
| ITF M15 Meerbusch | 2023/04/26 09:00 | Marcel Zielinski v John Sperle | 7-6,7-5 |
| ITF M15 Eindhoven | 2022/08/15 11:00 | Marcel Zielinski v John Sperle | 6-2,7-6 |