Stadium: Court 2 Round: 26 Ground: Carpet indoor
| ITF M15 Opava | 2021/11/17 09:00 | David Poljak v Lukas Palovic | 6-3,7-5 |
| Challenger Ortisei | 2021/11/07 09:30 | David Poljak v Filip Misolic | 4-6,6-7 |
| ITF - M15 Sharm El Sheikh | 2021/10/21 08:00 | Krainer, L. v David Poljak | 3-6,6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/10/20 11:25 | Mahadevan, Arjun v David Poljak | 1-6,1-6 |
| ITF M25 Prague | 2021/10/10 08:25 | Khumoyun Sultanov v David Poljak | 6-2,3-6,6-4 |
| ITF M25 Prague | 2021/10/09 08:30 | Simon, Tobias v David Poljak | 6-7,4-6 |
| ITF M25 Prague | 2021/10/08 09:00 | David Poljak v Fayziev, Sanjar | 6-4,6-2 |
| ITF M25 Prague | 2021/10/07 11:55 | David Poljak v Nejedly, Pavel | 6-3,3-6,6-2 |
| ITF M15 Opava | 2021/11/16 10:55 | Ondrej Valek v Ondrej Horak | 5-7,6-7 |
| ITF - M15 Sharm El Sheikh | 2021/11/03 13:00 | Saba Purtseladze v Ondrej Horak | 6-2,4-6,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/11/02 07:30 | Leonid Sheyngezikht v Ondrej Horak | 7-6,1-6,9-11 |
| ITF - M15 Sharm El Sheikh | 2021/11/01 09:00 | Hamed, Mohab v Ondrej Horak | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2021/10/31 11:30 | Groener, Eirik v Ondrej Horak | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2021/10/24 08:00 | Ondrej Horak v Davlianidze, Nikoloz | 6-1,6-7,8-10 |
| ITF - M15 Sharm El Sheikh | 2021/10/20 10:15 | Marek Gengel v Ondrej Horak | 6-0,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/10/19 07:25 | Sergei Pogosian v Ondrej Horak | 4-6,6-2,10-3 |