Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Girona | 2021/10/23 09:00 | Maks Kasnikowski v Pol Toledo Bague | 3-6,2-6 |
| ITF M15 Girona | 2021/10/22 10:30 | Ivan Gakhov v Maks Kasnikowski | 6-4,5-7,5-7 |
| ITF M15 Girona | 2021/10/21 08:00 | Fermin Tenti v Maks Kasnikowski | 3-6,4-6 |
| ITF M15 Girona | 2021/10/19 09:00 | Maks Kasnikowski v Aleksandre Metreveli | 5-7,6-2,7-5 |
| Challenger Szczecin | 2021/09/12 12:10 | Vitaliy Sachko v Maks Kasnikowski | 6-7,6-1,6-3 |
| Challenger Warsaw | 2021/08/25 15:40 | Camilo Ugo Carabelli v Maks Kasnikowski | 6-2,6-4 |
| ITF M15 Gdynia | 2021/08/11 12:30 | Petr Hajek v Maks Kasnikowski | 6-4,6-7,7-5 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 08:35 | Maks Kasnikowski v Zsombor Piros | 4-6,7-6,6-7 |
| ITF M15 Monastir | 2021/11/10 08:00 | Egor Tsarapkin v Giorgio Ricca | 3-6,1-6 |
| ITF M15 Monastir | 2021/11/08 14:00 | Gabriele Moghini v Egor Tsarapkin | 3-6,4-6 |
| ITF M15 Monastir | 2021/10/31 12:30 | Martin Katz v Egor Tsarapkin | 6-3,6-3 |
| ITF M15 Monastir | 2021/10/24 09:00 | Matas Vasiliauskas v Egor Tsarapkin | 6-4,6-1 |
| ITF M15 Monastir | 2021/10/18 10:30 | Warren Wood v Egor Tsarapkin | 6-3,6-0 |
| ITF M15 Monastir | 2021/10/17 09:00 | Rayen Zribi v Egor Tsarapkin | 4-6,0-6 |
| ITF M15 Monastir | 2021/10/11 13:00 | Nikita Volonski v Egor Tsarapkin | 6-2,6-1 |
| ITF M15 Monastir | 2021/10/11 08:00 | Egor Tsarapkin v Rishabdev Raman | 6-2,7-5 |