| ITF M15 Zlatibor | 2021/09/16 09:40 | Oleksandr Ovcharenko v Veljko Krstic | 6-1,6-1 |
| ITF M15 Zlatibor | 2021/09/14 11:10 | Tomislav Jotovski v Veljko Krstic | 4-6,1-6 |
| ITF M25 Belgrade | 2021/06/29 10:40 | Skander Mansouri v Veljko Krstic | 7-6,7-5 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 12:30 | Oleksandr Bielinskyi v Noah Lopez | 6-3,4-5 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 13:43 | Oleksandr Bielinskyi v Buvaysar Gadamauri | 6-7,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 10:00 | Oleksandr Bielinskyi v Artem Podorozhnyi | 6-3,6-3 |
| 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 | 2021/09/23 12:30 | George Botezan v Oleksandr Bielinskyi | 2-6,6-4,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/09/21 09:30 | Pablo Carretero v Oleksandr Bielinskyi | 6-4,4-6,4-5 |
| ITF M15 Chornomorsk | 2021/08/30 07:00 | Alessio Zanotti v Oleksandr Bielinskyi | 6-2,6-2 |
| UTR Pro Tennis Series Portoroz | 2021/08/26 08:30 | Oleksandr Bielinskyi v Yanais Laurent | 0-0 |