Stadium: Court 1 Round: 54 Ground: Clay
| ITF M15 Eupen | 2022/08/10 12:50 | Marcel Zielinski v Marlon Vankan | 6-4,4-6,4-6 |
| ITF M15 Eupen | 2022/08/09 10:05 | Lars Goran Verwerft v Marcel Zielinski | 1-6,2-6 |
| ITF M15 Eupen | 2022/08/08 11:30 | Cian Maguire v Marcel Zielinski | 0-6,3-6 |
| ITF M15 Lodz | 2022/07/29 08:00 | Marcel Zielinski v Petr Nouza | 0-6,6-1,1-6 |
| ITF M15 Lodz | 2022/07/27 10:50 | Marcel Zielinski v Jakub Katuch | 7-6,6-1 |
| ITF M15 Lodz | 2022/07/26 10:00 | Sandro Szic v Marcel Zielinski | 2-6,2-6 |
| ITF M15 Lodz | 2022/07/25 10:00 | Piotr Galus v Marcel Zielinski | 2-6,0-6 |
| Challenger Luedenscheid | 2022/06/28 16:55 | Marcel Zielinski v Denis Yevseyev | 7-6,2-6,4-6 |
| ITF M15 Eindhoven | 2022/08/14 10:30 | Thijmen Loof v John Sperle | 0-6,4-6 |
| Challenger Meerbusch | 2022/08/07 09:00 | John Sperle v Lucas Gerch | 5-7,2-6 |
| ITF M15 Vejle | 2022/07/27 10:50 | John Sperle v Johannes Ingildsen | 5-7,3-6 |
| ITF M15 Vejle | 2022/07/25 16:00 | John Sperle v Christopher Patzanovsky | 7-6,6-2 |
| ITF M15 Metzingen | 2022/07/19 13:30 | Peter Fajta v John Sperle | 6-3,6-4 |
| ITF M15 Metzingen | 2022/07/18 12:00 | Axel Nefve v John Sperle | 3-6,3-6 |
| ITF M15 Metzingen | 2022/07/17 16:15 | Finn Bischof v John Sperle | 1-6,0-6 |
| ITF M15 Metzingen | 2022/07/17 07:30 | Alexander Richards v John Sperle | 5-7,0-6 |