Stadium: Court 4 Round: 14 Ground: Clay
| ITF - M15 Sharm El Sheikh | 2022/03/03 09:30 | Patael, Ben v Ondrej Horak | 6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2022/03/02 10:40 | Zukauskas, Simonas v Ondrej Horak | 6-1,5-7,5-7 |
| ITF - M15 Sharm El Sheikh | 2022/02/20 12:00 | Ondrej Horak v Olaf Pieczkowski | 1-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2022/02/14 12:00 | Benitez Chavarriaga, Juan Manuel v Ondrej Horak | 7-5,6-4 |
| ITF - M15 Sharm El Sheikh | 2022/02/13 13:30 | Ondrej Horak v Nikita Ianin | 6-1,2-6,10-5 |
| ITF M15 Ostrava | 2021/11/24 09:00 | David Poljak v Ondrej Horak | 6-3,3-6,6-3 |
| ITF M15 Opava | 2021/11/18 11:20 | David Poljak v Ondrej Horak | 6-3,6-3 |
| ITF M15 Opava | 2021/11/16 10:55 | Ondrej Valek v Ondrej Horak | 5-7,6-7 |
| Challenger - Prague | 2022/04/17 08:30 | Sebastian Fanselow v Erler, Alexander | 6-1,7-5 |
| Challenger Biel | 2022/03/20 13:55 | Andrew Paulson v Erler, Alexander | 7-5,6-3 |
| Bengaluru 2, India, Qualifying | 2022/02/13 08:40 | Dominik Palan v Erler, Alexander | 7-6,4-6,6-3 |
| Challenger - Bengaluru | 2022/02/07 06:05 | Arjun Kadhe v Erler, Alexander | 6-3,6-4 |
| Challenger - Bengaluru | 2022/02/06 10:40 | Manish Sureshkumar v Erler, Alexander | 2-6,4-6 |
| Forli 5, Italy, Qualifying | 2022/01/16 12:55 | Erler, Alexander v Lucas Miedler | 1-6,3-6 |
| Challenger Maia | 2021/12/14 14:40 | Erler, Alexander v Fabian Marozsan | 1-6,2-6 |
| Forli 6, Italy | 2021/12/06 15:25 | Erler, Alexander v Vitaliy Sachko | 6-3,2-6,2-6 |