Estadio: Court C Round: 62 Ground: Clay
| ITF M25 Pardubice | 2021/09/19 09:00 | Matthias Uwe Kask v Vojtech Mares | 6-4,4-6,10-3 |
| ITF M15 Parnu | 2021/08/02 08:00 | Martins Rocens v Matthias Uwe Kask | 6-4,6-1 |
| ITF M15 Sibenik | 2021/05/16 12:30 | Leon Benedict v Matthias Uwe Kask | 4-6,6-2,10-6 |
| ITF M15 Sibenik | 2021/04/19 13:50 | Matthias Uwe Kask v Luigi Castelletti | 5-7,6-2,15-17 |
| ITF M15 Opatija | 2021/03/21 11:00 | Matthias Uwe Kask v Bozo Barun | 2-6,4-6 |
| UTR Pro Tennis Series - Rícany | 2021/09/19 07:00 | Yann Wojcik v Dominik Recek | 6-3,6-4 |
| UTR Pro Tennis Series - Rícany | 2021/09/18 07:30 | Dominik Kellovsky v Dominik Recek | 4-6,6-6 |
| UTR Pro Tennis Series - Rícany | 2021/09/17 12:00 | Dominik Recek v Matyas Cerny | 6-2,0-6,3-5 |
| UTR Pro Tennis Series - Rícany | 2021/09/15 12:00 | Dominik Recek v Petr Hajek | 7-6,5-3 |
| UTR Pro Tennis Series - Rícany | 2021/09/14 15:00 | Dominik Recek v Jiri Barnat | 6-4,5-4 |
| UTR Pro Tennis Series - Rícany | 2021/09/13 07:30 | Antonin Bolardt v Dominik Recek | 1-6,7-6,1-5 |
| ITF M25 Prostejov | 2021/08/17 07:55 | Dominik Recek v Daniel Paty | 3-6,7-6,4-6 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Julius Tverijonas v Dominik Recek | 6-1,6-2 |