Estadio: Court 6 Round: 54 Ground: Clay
| ITF M25 Wroclaw | 2022/06/26 12:00 | Daniel Orlita v Piotr Galus | 6-2,6-2 |
| ITF M15 Bytom | 2022/06/06 08:00 | Max Wiskandt v Piotr Galus | 6-2,6-3 |
| ITF M15 Cancun | 2021/11/23 14:00 | Rodrigo Echavarria v Piotr Galus | 6-2,3-6,10-7 |
| ITF M15 Cancun | 2021/11/22 14:00 | Fernando A. Z. Cantillana v Piotr Galus | 2-6,4-6 |
| ITF M15 Lódz | 2021/08/16 08:00 | Piotr Galus v Yann Wojcik | 2-6,2-6 |
| ITF M15 Lódz | 2021/08/15 08:00 | Piotr Galus v Leon Hoeveler | 6-3,6-2 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Piotr Galus v Alexis Canter | 2-6,1-6 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Mikolaj Borkowski v Piotr Galus | 6-7,1-6 |
| Challenger de 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 |
| UTR Pro Tennis Series - Blaricum | 2022/04/04 13:30 | Marcel Zielinski v Ivan Penev | 6-0,6-4 |
| UTR Pro Tennis Series - Blaricum | 2022/04/03 11:00 | Miko Wassermann v Marcel Zielinski | 2-6,1-5 |
| ITF M25 Antalya | 2022/03/17 07:00 | Viacheslav Bielinskyi v Marcel Zielinski | 6-4,6-4 |
| ITF M25 Antalya | 2022/03/15 07:00 | Matas Vasiliauskas v Marcel Zielinski | 2-6,2-6 |
| UTR Pro Tennis Series - Amsterdam | 2022/03/06 09:00 | Max Houkes v Marcel Zielinski | 7-5,6-3 |