Estadio: Court 1 Round: 26 Ground: Clay
| ITF M15 Novomoskovsk | 2021/06/03 17:50 | Matias Zukas v Marco Miceli | 4-6,6-3,10-2 |
| ITF M15 Sibenik | 2021/05/19 10:30 | Matias Zukas v Nikita Mashtakov | 2-6,3-6 |
| ITF M15 Córdoba | 2021/04/07 16:30 | Matias Zukas v Franco Roncadelli | 6-3,7-5 |
| ITF 15 Antalya | 2021/03/11 07:00 | Matias Zukas v Nicolae Frunza | 6-7,5-7 |
| ITF 15 Antalya | 2021/03/10 11:55 | Matias Zukas v Baran Cengiz | 6-3,6-1 |
| ITF 15 Antalya | 2021/03/04 07:00 | Joao Lucas Reis da Silva v Matias Zukas | 5-7,6-4,7-6 |
| ITF 15 Antalya | 2021/03/03 07:00 | Andrea Picchione v Matias Zukas | 6-1,3-6,3-6 |
| ITF 15 Antalya | 2021/02/27 06:50 | Matias Zukas v Raul Brancaccio | 1-6,6-4,2-6 |
| ITF M15 Novomoskovsk | 2021/06/03 15:30 | Oleksandr Ovcharenko v Timur Mukhtarulin | 6-1,6-4 |
| ITF M15 Novomoskovsk | 2021/05/27 07:15 | Jose Fco. Vidal Azorin v Oleksandr Ovcharenko | 6-4,6-3 |
| ITF M15 Novomoskovsk | 2021/05/26 08:20 | Oleksandr Ovcharenko v Marat Deviatiarov | 7-6,6-4 |
| ITF 15 Antalya | 2021/04/27 07:00 | Colin Sinclair v Oleksandr Ovcharenko | 7-6,4-6,10-4 |
| ITF 15 Antalya | 2021/04/26 07:00 | Gabriele Bosio v Oleksandr Ovcharenko | 3-6,6-7 |
| ITF 15 Antalya | 2021/04/25 07:00 | Vladislav Sveridenko v Oleksandr Ovcharenko | 1-6,2-6 |
| ITF 15 Antalya | 2021/04/23 07:00 | Oleksandr Ovcharenko v Christopher Heyman | 6-3,0-6,6-7 |
| ITF 15 Antalya | 2021/04/22 07:00 | Tiago Cacao v Oleksandr Ovcharenko | 7-6,1-6,0-6 |