Stadium: Court 3 Round: 25 Ground: Clay
| 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 |
| UTR Pro Tennis Series Amsterdam | 2022/03/05 12:00 | Thorsten Sollie v Marcel Zielinski | 5-7,3-6 |
| UTR Pro Tennis Series Amsterdam | 2022/03/03 10:30 | Marcel Zielinski v Yanais Laurent | 6-3,7-5 |
| Challenger Sanremo | 2022/04/03 14:30 | Matteo Martineau v David Pichler | 2-6,6-2,6-4 |
| Challenger St Brieuc | 2022/03/27 10:45 | Marvin Moeller v David Pichler | 7-6,6-3 |
| Challenger Zadar | 2022/03/20 11:50 | Luciano Darderi v David Pichler | 1-6,6-4,7-5 |
| ITF M25 Rovinj | 2022/03/16 08:55 | Oriol Roca Batalla v David Pichler | 6-3,6-3 |
| ITF M25 Santo Domingo | 2022/03/01 19:00 | David Pichler v Quentin Folliot | 2-6,1-6 |
| ITF M25 Santo Domingo | 2022/02/23 19:20 | David Pichler v Henry Patten | 7-5,6-7,4-6 |
| ITF M25 Santo Domingo | 2022/02/21 18:00 | David Pichler v Paul Valsecchi | 6-2,6-2 |
| ITF M25 Santo Domingo | 2022/02/21 13:00 | David Pichler v Nicholas Bybel | 6-2,6-4 |