Estádio: Tchamba Court Round: 25 Ground: Clay
| 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 Łódź | 2022/07/29 08:00 | Marcel Zielinski v Petr Nouza | 0-6,6-1,1-6 |
| ITF - M15 Łódź | 2022/07/27 10:50 | Marcel Zielinski v Jakub Katuch | 7-6,6-1 |
| ITF - M15 Łódź | 2022/07/26 10:00 | Sandro Szic v Marcel Zielinski | 2-6,2-6 |
| ITF - M15 Łódź | 2022/07/25 10:00 | Piotr Galus v Marcel Zielinski | 2-6,0-6 |
| Challenger - Lüedenscheid | 2022/06/28 16:55 | Marcel Zielinski v Denis Yevseyev | 7-6,2-6,4-6 |
| ITF - M15 Kamen | 2022/06/21 14:00 | Marcel Zielinski v David Pichler | 3-6,6-7 |
| ITF - M15 Eupen | 2022/08/09 08:00 | Marlon Vankan v Nazim Makhlouf | 6-2,6-3 |
| ITF - M15 Eupen | 2022/08/08 13:10 | Marlon Vankan v Martin Benes | 6-3,6-4 |
| ITF - M15 Eupen | 2022/08/07 07:30 | Marlon Vankan v Maxime Dubouch | 7-5,6-4 |
| ITF - M15 Frederiksberg | 2022/08/04 09:20 | Leo Borg v Marlon Vankan | 6-2,6-3 |
| ITF - M15 Frederiksberg | 2022/08/03 07:30 | Mikail Alimli v Marlon Vankan | 6-4,3-6,3-6 |
| ITF - M15 Vejle | 2022/07/30 10:15 | Marlon Vankan v Mick Veldheer | 6-7,1-6 |
| ITF - M15 Vejle | 2022/07/29 11:05 | Marlon Vankan v Christian Sigsgaard | 7-6,6-4 |
| ITF - M15 Vejle | 2022/07/28 13:50 | Alfredo Perez v Marlon Vankan | 4-6,4-6 |