Stadium: Hard 20 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Heraklion | 2022/11/01 07:30 | Marcel Zielinski v Benjamin Kreynes | 6-2,6-2 |
| ITF - M15 Heraklion | 2022/10/30 07:00 | Marcel Zielinski v Damian Rodriguez | 6-2,6-7,10-7 |
| ITF - M15 Lambermont | 2022/08/27 11:00 | Stijn Slump v Marcel Zielinski | 7-6,6-3 |
| ITF - M15 Lambermont | 2022/08/25 11:20 | Marcel Zielinski v Karl Friberg | 6-7,6-4,6-3 |
| ITF - M15 Lambermont | 2022/08/24 10:30 | Giammarco Gandolfi v Marcel Zielinski | 2-6,4-6 |
| ITF - M15 Lambermont | 2022/08/22 08:00 | Marcel Zielinski v Tommaso Vola | 6-2,6-4 |
| ITF - M15 Lambermont | 2022/08/22 08:00 | Marcel Zielinski v Jesse De Jager | 6-4,7-6 |
| ITF - M15 Eindhoven | 2022/08/18 11:00 | David Pichler v Marcel Zielinski | 6-4,6-1 |
| ITF - M15 Parnu | 2022/10/29 10:40 | Szymon Kielan v Nicolas Kobelt | 6-7,4-6 |
| ITF - M15 Parnu | 2022/10/28 09:30 | Szymon Kielan v Eero Vasa | 7-5,6-4 |
| ITF - M15 Parnu | 2022/10/27 12:40 | Szymon Kielan v Vesa Ahti | 6-4,6-3 |
| ITF - M15 Sozopol | 2022/10/20 07:00 | Riccardo Balzerani v Szymon Kielan | 7-6,6-4 |
| ITF - M15 Sozopol | 2022/10/19 08:50 | Dinko Dinev v Szymon Kielan | 3-6,2-6 |
| ITF - M25 Pardubice | 2022/09/21 09:45 | Tim Handel v Szymon Kielan | 7-5,7-5 |
| Challenger - Szczecin | 2022/09/11 11:10 | Johan Nikles v Szymon Kielan | 6-2,6-2 |
| ITF - M15 Celje | 2022/08/25 07:00 | Admir Kalender v Szymon Kielan | 7-6,6-0 |