Stadium: Court 2 Round: 25 Ground: Clay
| ITF - M15 Antalya | 2021/04/27 07:00 | Colin Sinclair v Oleksandr Ovcharenko | 7-6,4-6,10-4 |
| ITF - M15 Antalya | 2021/04/26 07:00 | Gabriele Bosio v Oleksandr Ovcharenko | 3-6,6-7 |
| ITF - M15 Antalya | 2021/04/25 07:00 | Vladislav Sveridenko v Oleksandr Ovcharenko | 1-6,2-6 |
| ITF - M15 Antalya | 2021/04/23 07:00 | Oleksandr Ovcharenko v Christopher Heyman | 6-3,0-6,6-7 |
| ITF - M15 Antalya | 2021/04/22 07:00 | Tiago Cacao v Oleksandr Ovcharenko | 7-6,1-6,0-6 |
| ITF - M15 Antalya | 2021/04/21 08:20 | Gianmarco Ferrari v Oleksandr Ovcharenko | 3-6,2-6 |
| ITF - M15 Antalya | 2021/04/20 12:00 | Dan Alexandru Tomescu v Oleksandr Ovcharenko | 6-3,4-6,6-10 |
| ITF - M15 Antalya | 2021/04/19 09:00 | Federico Campana v Oleksandr Ovcharenko | 0-6,0-6 |
| ITF - M15 Tbilisi | 2021/05/18 07:00 | Marat Deviatiarov v Marek Gengel | 1-6,4-6 |
| ITF - M15 Jerusalem | 2021/05/13 07:00 | Justin Roberts v Marat Deviatiarov | 6-1,6-2 |
| ITF - M15 Jerusalem | 2021/05/12 07:00 | Alec Beckley v Marat Deviatiarov | 1-6,6-7 |
| ITF - M15 Ramat Hasharon | 2021/05/07 07:00 | Marat Deviatiarov v Felix Corwin | 5-7,4-6 |
| ITF - M15 Ramat Hasharon | 2021/05/06 10:30 | Marat Deviatiarov v Lior Goldenberg | 6-3,6-2 |
| ITF - M15 Ramat Hasharon | 2021/05/05 09:10 | Marat Deviatiarov v Roee Benya | 7-6,6-0 |
| ITF - M15 St Petersburg | 2021/04/15 07:00 | Naoki Tajima v Marat Deviatiarov | 7-6,6-3 |
| ITF - M15 St Petersburg | 2021/04/14 07:00 | Maxim Ratniuk v Marat Deviatiarov | 7-6,6-7,6-7 |