Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF Estonia F3 | 2018/11/07 10:55 | Martins Podzus v Nikita Mashtakov | 6-2,6-1 |
| ITF Estonia F3 | 2018/11/05 09:00 | Nikita Mashtakov v Siim Troost | 6-4,1-6,6-3 |
| ITF Estonia F2 | 2018/10/31 12:10 | Alexander Vasilenko v Nikita Mashtakov | 6-3,7-5 |
| ITF Estonia F2 | 2018/10/30 11:45 | Nikita Mashtakov v Lukas Mugevicius | 3-6,7-5,6-0 |
| ITF Lebanon F1 | 2018/09/25 13:00 | Nikita Mashtakov v Karim-Mohamed Maamoun | 7-5,1-6,0-6 |
| Challenger Szczecin | 2018/09/08 12:15 | Guillermo Duran v Nikita Mashtakov | 7-5,5-7,7-6 |
| ITF Ukraine F4 | 2018/08/30 10:45 | Nikita Mashtakov v Oleksii Krutykh | 6-7,6-4,0-6 |
| ITF Ukraine F4 | 2018/08/29 12:05 | Vladyslav Manafov v Nikita Mashtakov | 4-6,5-7 |
| ITF Qatar F4 | 2018/12/03 12:00 | Guy Den Heijer v Alexander Donski | 4-6,7-5,6-1 |
| ITF Qatar F4 | 2018/12/02 16:55 | Alexander Donski v Jesper De Jong | 5-7,6-4,6-4 |
| ITF Qatar F4 | 2018/12/01 09:00 | Alexander Donski v Erik Helin | 6-3,6-3 |
| ITF Thailand F9 | 2018/11/12 03:00 | Alexander Donski v Palaphoom Kovapitukted | 5-7,5-7 |
| ITF Thailand F9 | 2018/11/11 06:00 | Sanhui Shin v Alexander Donski | 6-7,1-6 |
| ITF Thailand F9 | 2018/11/10 05:00 | Alexander Donski v Hao Yuan Ng | 6-4,7-5 |
| ITF Thailand F8 | 2018/11/05 02:00 | Phongsapak Kerdlaphee v Alexander Donski | 6-7,6-2,7-6 |
| ITF Thailand F8 | 2018/11/04 02:00 | Alexander Donski v Sanhui Shin | 6-2,5-7,6-4 |