Stadium: BNP Paribas Court Round: 62 Ground: Clay
| ITF M15 Eupen | 2022/08/08 09:00 | Lars Goran Verwerft v Thorben Sannen | 6-3,4-6,10-8 |
| ITF M15 Eupen | 2022/08/07 07:30 | Stefanos Sakellaridis v Lars Goran Verwerft | 4-6,1-6 |
| 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 Kamen | 2022/06/21 14:00 | Marcel Zielinski v David Pichler | 3-6,6-7 |
| UTR Pro Tennis Series Blaricum | 2022/04/05 08:00 | Marcel Zielinski v Roland Stuurman | 3-6,4-6 |