| 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 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Petr Hajek v Daniele Valentino | 6-3,6-1 |
| UTR Pro Tennis Series Ricany | 2021/09/17 10:30 | Andrey Chepelev v Andrew Paulson | 3-6,2-5 |
| UTR Pro Tennis Series Ricany | 2021/09/16 08:30 | Marek Jaloviec v Andrew Paulson | 6-3,2-6,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/14 10:30 | Jiri Jenicek v Andrew Paulson | 3-6,4-5 |
| UTR Pro Tennis Series Ricany | 2021/09/13 09:00 | Andrew Paulson v Dominik Suc | 4-6,7-6,6-0 |
| ITF M25 Ricany | 2021/09/01 07:55 | Andrew Paulson v Pavel Nejedly | 1-6,0-6 |
| Challenger Prague | 2021/08/23 13:00 | Rudolf Molleker v Andrew Paulson | 7-5,4-6,6-1 |
| ITF M15 Bratislava | 2021/08/19 12:20 | David Pichler v Andrew Paulson | 2-6,6-3,6-2 |
| ITF M15 Bratislava | 2021/08/17 14:05 | Boris Pokotilov v Andrew Paulson | 6-4,0-6,2-6 |