Stadium: Pista 4 Round: 28 Ground: Clay
| 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 - Varsovia | 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 - M25 Grodzisk Mazowiecki | 2021/08/04 15:00 | Svyatoslav Ilnytskyy v Maks Kasnikowski | 2-6,3-6 |
| ITF - M15 Girona | 2021/10/22 09:00 | Lucas Bouquet v Pol Toledo Bague | 2-6,1-6 |
| ITF - M15 Girona | 2021/10/21 08:00 | Mario Mansilla Diez v Pol Toledo Bague | 3-6,2-6 |
| ITF - M15 Girona | 2021/10/20 08:00 | Jaime Caldes v Pol Toledo Bague | 4-6,0-6 |
| ITF - M15 Platja d'Aro | 2021/10/16 11:00 | Carlos Sanchez Jover v Pol Toledo Bague | 7-5,7-6 |
| ITF - M15 Platja d'Aro | 2021/10/15 14:05 | Pol Toledo Bague v Aleksandre Metreveli | 7-5,6-3 |
| ITF - M15 Platja d'Aro | 2021/10/14 12:35 | Clement Tabur v Pol Toledo Bague | 3-6,5-7 |
| ITF - M15 Platja d'Aro | 2021/10/13 10:05 | Kirill Mishkin v Pol Toledo Bague | 1-6,1-6 |
| ITF - M15 Platja d'Aro | 2021/10/08 14:00 | Pol Toledo Bague v Carlos Sanchez Jover | 6-3,6-3 |