Stadium: Court 3 Round: 27 Ground: Clay
| ITF M15 Novomoskovsk | 2021/05/27 10:40 | Michal Dembek v Felix Gill | 3-6,5-7 |
| ITF M15 Novomoskovsk | 2021/05/25 11:00 | Felix Gill v German Samofalov | 6-2,6-7,6-2 |
| ITF M15 Cairo | 2021/05/04 08:00 | Felix Gill v Olexiy Kolisnyk | 1-6,3-6 |
| ITF M15 Cairo | 2021/05/03 08:00 | Felix Gill v Gian Luca Tanner | 4-6,6-3,10-7 |
| ITF M15 Cairo | 2021/04/29 08:00 | Carlos Sanchez Jover v Felix Gill | 6-4,7-5 |
| ITF M15 Cairo | 2021/04/28 08:00 | Felix Gill v Stefan Ivic | 6-4,6-0 |
| ITF M15 Cairo | 2021/04/27 10:25 | Felix Gill v Yuichiro Inui | 7-6,6-1 |
| ITF M15 Cairo | 2021/04/26 12:30 | Felix Gill v Omar El-Moslemany | 6-3,6-0 |
| ITF M15 Novomoskovsk | 2021/05/27 07:15 | Oleksandr Bielinskyi v Nikita Mashtakov | 6-3,1-6,5-7 |
| ITF M15 Novomoskovsk | 2021/05/26 06:15 | Nikita Mashtakov v Martins Podzus | 5-7,6-3,6-4 |
| ITF M15 Sibenik | 2021/05/20 11:00 | Nikita Mashtakov v Tom Kocevar-Desman | 5-7,4-6 |
| ITF M15 Sibenik | 2021/05/19 10:30 | Matias Zukas v Nikita Mashtakov | 2-6,3-6 |
| ITF M15 Shymkent | 2021/04/16 07:30 | Andrey Chepelev v Nikita Mashtakov | 3-6,6-1,6-4 |
| ITF M15 Shymkent | 2021/04/15 06:20 | Grigoriy Lomakin v Nikita Mashtakov | 2-6,3-6 |
| ITF M15 Shymkent | 2021/04/14 07:30 | Alexander Chepik v Nikita Mashtakov | 7-6,3-6,4-6 |
| ITF M15 Shymkent | 2021/04/07 10:45 | Nikita Mashtakov v Luca Tomasetto | 6-7,3-6 |