Round: 26 Ground: Clay
| ITF M15 Novomoskovsk | 2021/06/03 16:55 | Aliaksandr Liaonenka v Deviatiarov, Marat | 1-6,4-6 |
| ITF M15 Novomoskovsk | 2021/05/26 08:20 | Oleksandr Ovcharenko v Deviatiarov, Marat | 7-6,6-4 |
| ITF - M15 Tbilisi | 2021/05/18 07:00 | Deviatiarov, Marat v Marek Gengel | 1-6,4-6 |
| ITF M15 Jerusalem | 2021/05/13 07:00 | Justin Roberts v Deviatiarov, Marat | 6-1,6-2 |
| ITF M15 Jerusalem | 2021/05/12 07:00 | Alec Beckley v Deviatiarov, Marat | 1-6,6-7 |
| ITF M15 Ramat Hasharon | 2021/05/07 07:00 | Deviatiarov, Marat v Felix Corwin | 5-7,4-6 |
| ITF M15 Ramat Hasharon | 2021/05/06 10:30 | Deviatiarov, Marat v Goldenberg, Lior | 6-3,6-2 |
| ITF M15 Ramat Hasharon | 2021/05/05 09:10 | Deviatiarov, Marat v Benya, Roee | 7-6,6-0 |
| ITF M15 Novomoskovsk | 2021/06/03 18:30 | Nikita Mashtakov v Podzus, Martins | 4-6,1-6 |
| ITF M15 Novomoskovsk | 2021/05/26 06:15 | Nikita Mashtakov v Podzus, Martins | 5-7,6-3,6-4 |
| ITF - M15 Sharm El Sheikh | 2021/03/10 07:30 | Hanwen Li v Podzus, Martins | 7-6,7-6 |
| ITF - M15 Sharm El Sheikh | 2021/03/05 07:30 | Podzus, Martins v Mukund Sasikumar | 3-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2021/03/04 09:00 | Podzus, Martins v Alessandro Pecci | 7-6,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/03/03 07:30 | Podzus, Martins v Jumpei Yamasaki | 7-5,6-3 |
| ITF - M15 Sharm El Sheikh | 2021/02/28 07:30 | Podzus, Martins v Paul Jubb | 2-6,6-1,2-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/27 07:30 | Robert Strombachs v Podzus, Martins | 3-6,3-6 |