| UTR Pro Tennis Series Nis | 2021/10/05 09:00 | Stefan Ivic v Lawrence Bataljin | 4-6,4-5 |
| UTR Pro Tennis Series Nis | 2021/10/04 10:00 | Ivan Liutarevich v Stefan Ivic | 6-4,6-0 |
| ITF M15 Pirot | 2021/09/20 09:30 | Stefan Ivic v Goran Zivotic | 3-6,3-6 |
| ITF M15 Pirot | 2021/09/19 09:30 | Jamie Krattiger v Stefan Ivic | 4-6,1-6 |
| ITF M15 Zlatibor | 2021/09/14 08:00 | Jasza Szajrych v Stefan Ivic | 6-3,6-3 |
| ITF M15 Zlatibor | 2021/09/13 08:00 | Dusan Trunic v Stefan Ivic | 6-4,1-6,8-10 |
| ITF M15 Zlatibor | 2021/09/12 08:45 | Stefan Ivic v Luka Todorovic | 6-4,6-1 |
| ITF M15 Ulcinj | 2021/09/05 07:30 | Stefan Ivic v Aliaksandr Liaonenka | 4-6,4-6 |
| UTR Pro Tennis Series Nis | 2021/10/04 08:30 | Veljko Krstic v Oleksandr Bielinskyi | 5-7,6-1,6-3 |
| 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 |