Estádio: Court 2 Round: 26 Ground: Clay
| ITF - M15 Novomoskovsk | 2021/05/26 10:45 | Viacheslav Bielinskyi v Oleksandr Bielinskyi | 6-7,6-4,0-6 |
| ITF - M15 Novomoskovsk | 2021/05/25 11:30 | Cengiz Aksu v Oleksandr Bielinskyi | 5-7,1-6 |
| ITF - M15 Novomoskovsk | 2021/05/25 06:15 | Oleksandr Bielinskyi v Juan Ignacio Alcalde | 6-2,6-2 |
| ITF - M15 Novomoskovsk | 2021/05/23 10:30 | Denis Parshutin v Oleksandr Bielinskyi | 2-6,3-6 |
| ITF - M15 Cairo | 2021/04/26 08:00 | Oleksandr Bielinskyi v Bautista Vilicich | 6-3,2-6,5-10 |
| ITF - M15 Cairo | 2021/04/25 16:00 | Youssef Abdellatif v Oleksandr Bielinskyi | 0-6,0-6 |
| ITF - M15 Cairo | 2021/04/19 09:30 | Luigi Sorrentino v Oleksandr Bielinskyi | 4-6,6-4,11-9 |
| ITF - M15 Cairo | 2021/04/18 08:30 | Marco De Rosa v Oleksandr Bielinskyi | 2-6,1-6 |
| ITF - M15 Novomoskovsk | 2021/05/26 06:15 | Nikita Mashtakov v Martins Podzus | 5-7,6-3,6-4 |
| ITF - M15 Šibenik | 2021/05/20 11:00 | Nikita Mashtakov v Tom Kocevar-Desman | 5-7,4-6 |
| ITF - M15 Šibenik | 2021/05/19 10:30 | Matias Zukas v Nikita Mashtakov | 2-6,3-6 |
| ITF - M15 Shymkent | 2021/04/16 07:30 | Andrey Chepelev v Nikita Mashtakov | 3-6,6-1,6-4 |
| ITF - M15 Shymkent | 2021/04/15 06:20 | Grigoriy Lomakin v Nikita Mashtakov | 2-6,3-6 |
| ITF - M15 Shymkent | 2021/04/14 07:30 | Alexander Chepik v Nikita Mashtakov | 7-6,3-6,4-6 |
| ITF - M15 Shymkent | 2021/04/07 10:45 | Nikita Mashtakov v Luca Tomasetto | 6-7,3-6 |
| ITF - M15 Rovinj | 2021/03/16 12:20 | Nikita Mashtakov v Antoine Cornut-Chauvinc | 4-6,6-3,1-6 |