Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Pardubice | 2021/09/22 10:15 | Lukas Pokorny v Eric Vanshelboim | 7-6,2-6,1-6 |
| ITF M25 Pardubice | 2021/09/21 09:30 | Antonin Bolardt v Lukas Pokorny | 7-6,0-6,8-10 |
| ITF M15 Zilina | 2021/09/03 08:00 | Mariano Navone v Lukas Pokorny | 6-2,6-0 |
| ITF M15 Zilina | 2021/09/02 10:10 | Lukas Pokorny v Martins Podzus | 6-4,6-3 |
| ITF M15 Zilina | 2021/09/01 11:45 | Mikalai Haliak v Lukas Pokorny | 2-6,1-6 |
| ITF M15 Bratislava | 2021/08/25 13:05 | Jakub Novak v Lukas Pokorny | 3-6,7-5,7-5 |
| ITF M15 Bratislava | 2021/08/18 10:05 | Diego F Flores v Lukas Pokorny | 6-4,2-6,6-4 |
| ITF M25 Kottingbrunn | 2021/07/19 14:20 | Tadeas Paroulek v Lukas Pokorny | 6-2,6-4 |
| UTR Pro Tennis Series Ricany | 2021/09/18 09:00 | Petr Hajek v Andrew Paulson | 4-6,1-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 12:00 | Stefanos Sakellaridis v Petr Hajek | 6-7,2-6 |
| UTR Pro Tennis Series Ricany | 2021/09/16 07:00 | Antonin Bolardt v Petr Hajek | 2-6,1-6 |
| UTR Pro Tennis Series Ricany | 2021/09/15 12:00 | Dominik Recek v Petr Hajek | 7-6,5-3 |
| UTR Pro Tennis Series Ricany | 2021/09/13 07:30 | Matyas Cerny v Petr Hajek | 1-6,2-6 |
| ITF M15 Bad Waltersdorf | 2021/08/22 09:00 | Petr Hajek v Gabriel Decamps | 6-7,2-6 |
| ITF M15 Warmbad-Villach | 2021/08/18 08:00 | Petr Hajek v Tom Kocevar-Desman | 4-6,7-5,4-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 08:00 | Petr Hajek v Ioannis Xilas | 6-3,7-6 |