| ITF Germany F5 | 06/25 11:30 | 62 | Nikita Mashtakov v Florian Broska | 6-4,6-4 | |
| ITF Germany F5 | 06/25 08:00 | 62 | Nikita Mashtakov v Lawrence Bataljin | 6-2,6-4 | |
| ITF Ukraine F3 | 05/22 11:45 | 25 | Georgii Kravchenko v Nikita Mashtakov | 3-6,6-3,7-5 | |
| ITF Ukraine F2 | 05/15 07:00 | 25 | Alessandro Petrone v Nikita Mashtakov | 5-7,6-4,6-3 | |
| ITF Ukraine F1 | 05/09 07:00 | 26 | Nikita Mashtakov v Claudio Fortuna | 4-6,6-2,5-7 | |
| ITF Ukraine F1 | 05/07 07:00 | 25 | Oleksii Krutykh v Nikita Mashtakov | 6-7,4-6 | |
| ITF Tunisia F15 | 04/16 09:00 | 62 | Nikita Mashtakov v Alban Meuffels | 3-6,4-6 | |
| ITF Tunisia F15 | 04/15 09:00 | 62 | Nikita Mashtakov v Mikar Fisher | 6-4,6-3 | |
| ITF Tunisia F14 | 04/09 09:00 | 44 | Nikita Mashtakov v Ezequiel A Santalla | 3-6,5-7 | |
| ITF Tunisia F14 | 04/08 11:30 | 44 | Nikita Mashtakov v Martin Van Der Meerschen | 3-6,6-4,7-5 | |
| ITF Greece F5 | 03/30 07:30 | 27 | Petr Michnev v Nikita Mashtakov | 6-3,6-1 | |
| ITF Greece F5 | 03/29 07:30 | 26 | Nikita Mashtakov v Jakob Sude | 4-6,7-6,6-2 | |
| ITF Greece F5 | 03/27 09:25 | 25 | Mick Veldheer v Nikita Mashtakov | 5-7,2-6 | |
| ITF Greece F5 | 03/26 07:00 | 62 | Nikita Mashtakov v Kristjan Tamm | 6-4,6-3 | |
| ITF Greece F5 | 03/25 10:00 | 62 | Nikita Mashtakov v Marvin Schramm | 6-1,6-4 | |
| ITF Greece F5 | 03/24 10:00 | 62 | Nikita Mashtakov v Milos Dabic | 6-2,7-6 | |
| ITF Greece F4 | 03/21 12:50 | 25 | Nikita Mashtakov v Andrej Glvac | 3-6,6-3,2-6 | |
| ITF Greece F4 | 03/19 08:00 | 62 | Andrej Glvac v Nikita Mashtakov | 6-7,6-4,6-4 | |
| ITF Greece F4 | 03/18 09:30 | 62 | Alexandros Skorilas v Nikita Mashtakov | 6-7,2-6 | |
| ITF Greece F4 | 03/17 07:30 | 62 | Francis Pare v Nikita Mashtakov | 3-6,1-6 | |
| ITF Greece F3 | 03/14 14:20 | 25 | Alan Kohen v Nikita Mashtakov | 6-2,6-7,7-6 | |
| ITF Greece F3 | 03/12 08:00 | 62 | Remy Bertola v Nikita Mashtakov | 5-7,6-2,2-6 | |
| ITF Greece F3 | 03/11 08:00 | 62 | Yates Johnson v Nikita Mashtakov | 0-6,3-6 | |
| ITF Greece F3 | 03/10 10:00 | 62 | Athanasios Bilis v Nikita Mashtakov | Retired | |
| ITF Turkey F7 | 02/17 06:30 | 62 | Daniel Appelgren v Nikita Mashtakov | 6-1,6-1 | |
| ITF Turkey F6 | 02/10 09:00 | 62 | Nikita Mashtakov v Charly Zick | 2-6,6-7 | |
| ITF Turkey F5 | 02/05 07:30 | 44 | Nikita Mashtakov v Patrick Grigoriu | 7-6,3-6,6-7 | |
| ITF Turkey F5 | 02/04 07:30 | 44 | Nikita Mashtakov v Hyeong Don Kim | 6-1,7-5 | |
| ITF Turkey F4 | 02/02 08:00 | 27 | Nikita Mashtakov v Ivan Nedelko | 5-7,3-6 | |
| ITF Turkey F4 | 02/01 09:30 | 26 | Alessandro Petrone v Nikita Mashtakov | 2-6,3-6 |