Stadium: Court 9 Round: 25 Ground: Clay
| 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 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 M15 Łódź | 2022/07/26 09:40 | Jakub Katuch v William Grant | 4-6,4-6 |
| ITF M25 Gandia | 2022/07/18 08:00 | Zakhar Trapeznikov v Jakub Katuch | 6-4,6-4 |
| ITF M25 Gandia | 2022/07/17 08:00 | Jordi Domenech Castillo v Jakub Katuch | 5-7,6-0,9-11 |
| ITF M25 Poprad | 2022/06/30 08:00 | Vlad Andrei Dancu v Jakub Katuch | 7-6,3-6,7-5 |
| ITF M25 Poprad | 2022/06/29 08:55 | Kelsey Stevenson v Jakub Katuch | 6-4,6-7,2-6 |
| ITF M25 Poprad | 2022/06/27 08:50 | Ondrej Horak v Jakub Katuch | 6-4,6-3 |
| ITF M25 Poprad | 2022/06/26 07:00 | Jakub Katuch v Samuel Paulovcak | 7-5,1-6,10-8 |
| ITF M25 Monastir | 2022/04/10 11:00 | Maxime Dubouch v Jakub Katuch | 6-3,6-2 |