| UTR Pro Tennis Series Mulheim | 2021/09/23 11:00 | Colin Sinclair v Jurriaan Bol | 6-3,6-3 |
| UTR Pro Tennis Series Mulheim | 2021/09/22 14:00 | Colin Sinclair v Christos Keisidis | 6-3,6-1 |
| UTR Pro Tennis Series Mulheim | 2021/09/21 08:00 | Colin Sinclair v Artem Podorozhnyi | 5-7,4-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/20 09:30 | Colin Sinclair v Edison Ambarzumjan | 7-5,5-4 |
| Davis Cup | 2021/09/18 08:15 | Kareem Allaf v Colin Sinclair | 5-7,7-6,4-6 |
| Davis Cup | 2021/09/17 08:50 | Mousa Shanan Zayed v Colin Sinclair | 1-6,0-6 |
| Davis Cup | 2021/09/15 09:20 | Nam Hoang Ly v Colin Sinclair | 4-6,6-4,4-6 |
| ITF M25 Eupen | 2021/09/10 10:55 | Colin Sinclair v Facundo Diaz Acosta | 4-6,5-7 |
| UTR Pro Tennis Series Mulheim | 2021/09/24 13:30 | Jing L Weng v Oleksandr Bielinskyi | 1-6,6-3,1-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/22 11:00 | Jing L Weng v Julien De Cuyper | 6-1,5-4 |
| UTR Pro Tennis Series Mulheim | 2021/09/20 11:00 | Pablo Carretero v Jing L Weng | 2-6,6-3,6-6 |
| ITF M25 Eupen | 2021/09/06 09:15 | Jip Van Assendelft v Jing L Weng | 6-4,6-1 |
| ITF M25 Eupen | 2021/09/05 10:30 | Kylian Collignon v Jing L Weng | 0-6,1-6 |
| ITF M15 Oldenzaal | 2021/08/15 12:00 | Jing L Weng v Karlo Cubelic | 3-6,1-6 |
| ITF M25 Marburg | 2021/07/05 12:25 | Jing L Weng v Raphael Collignon | 2-6,6-3,8-10 |
| ITF M25 The Hague | 2021/06/27 08:00 | Guy Den Heijer v Jing L Weng | 6-3,6-4 |