Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Eindhoven | 2022/08/15 09:00 | Rik Muller v Stijn Slump | 3-6,4-6 |
| ITF M15 Eindhoven | 2022/08/14 10:30 | Stijn Slump v Lambert Ruland | 6-2,7-5 |
| ITF M15 Vejle | 2022/07/25 14:55 | Stijn Slump v Lodewijk Weststrate | 2-6,3-6 |
| ITF M15 Vejle | 2022/07/24 08:00 | Alexandre Aubriot v Stijn Slump | 0-6,3-6 |
| ITF M25 Den Haag | 2022/06/26 10:00 | Zachary Eisinga v Stijn Slump | 6-3,6-3 |
| ITF Greece F10 | 2017/11/19 09:00 | Stijn Slump v Michalis Sakellaridis | 6-7,2-6 |
| ITF Greece F9 Qual | 2017/11/13 10:30 | Conor Berg v Stijn Slump | 6-1,6-1 |
| ITF Greece F9 Qual | 2017/11/12 09:00 | Daniel-Andrea R. Redondo v Stijn Slump | 6-7,3-6 |
| ITF M15 Eindhoven | 2022/08/15 11:00 | Marcel Zielinski v John Sperle | 6-2,7-6 |
| ITF M15 Eupen | 2022/08/10 12:50 | Marcel Zielinski v Marlon Vankan | 6-4,4-6,4-6 |
| ITF M15 Eupen | 2022/08/09 10:05 | Lars Goran Verwerft v Marcel Zielinski | 1-6,2-6 |
| 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 |