Stadium: Center Court Round: 28 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 |
| Challenger Charlottesville | 2021/10/31 15:00 | Christian Harrison v Arjun Kadhe | 6-2,6-2 |
| Challenger Losinj | 2021/10/19 10:40 | Filip Misolic v Arjun Kadhe | 6-1,6-2 |
| Challenger Losinj | 2021/10/17 10:00 | Jamie Cerretani v Arjun Kadhe | 3-6,0-6 |
| Challenger Napoli Qual | 2021/10/10 16:40 | Alexander Ritschard v Arjun Kadhe | 6-3,6-3 |
| Challenger Rennes | 2021/09/12 11:35 | Manuel Guinard v Arjun Kadhe | 6-4,1-6,6-3 |
| Challenger Amersfoort | 2021/07/11 11:40 | Jeremy Jahn v Arjun Kadhe | 6-2,6-7,6-4 |
| ITF M15 New Delhi | 2021/04/01 06:25 | Arjun Kadhe v Alexander Kotzen | 0-6,4-6 |
| ITF M15 New Delhi | 2021/03/31 04:00 | Arjun Kadhe v Dominik Palan | 6-3,6-4 |