| UTR Pro Tennis Series - Mulheim | 2021/09/21 08:00 | Edison Ambarzumjan v Christos Keisidis | 6-2,4-6,5-1 |
| UTR Pro Tennis Series - Mulheim | 2021/09/20 09:30 | Colin Sinclair v Edison Ambarzumjan | 7-5,5-4 |
| UTR Pro Tennis Series - Mulheim | 2021/09/20 09:30 | Artem Podorozhnyi v Jurriaan Bol | 7-6,5-3 |
| ITF - M15 Huy | 2021/08/22 15:50 | Thorsten Sollie v Jurriaan Bol | 3-6,6-2,10-2 |