Stadium: Court 1 Round: 29 Ground: Carpet indoor
| ITF M15 Opava | 2021/11/20 09:00 | David Poljak v Sean Cuenin | 6-4,6-2 |
| ITF M15 Opava | 2021/11/19 09:00 | David Poljak v Andrew Paulson | 6-2,4-6,7-6 |
| ITF M15 Opava | 2021/11/18 11:20 | David Poljak v Ondrej Horak | 6-3,6-3 |
| 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 | Lukas Krainer v David Poljak | 3-6,6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2021/10/20 11:25 | Arjun Mahadevan 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 M15 Opava | 2021/11/20 09:00 | Savriyan Danilov v Marvin Moeller | 3-6,4-6 |
| ITF M15 Opava | 2021/11/19 11:20 | Marvin Moeller v Henri Squire | 6-4,6-1 |
| ITF M15 Opava | 2021/11/18 12:45 | Marvin Moeller v Buvaysar Gadamauri | 6-1,7-6 |
| ITF M15 Opava | 2021/11/17 10:25 | Marvin Moeller v Dominik Kellovsky | 6-4,6-4 |
| Challenger Bratislava | 2021/11/08 09:30 | Dalibor Svrcina v Marvin Moeller | 7-6,2-6,6-1 |
| Challenger Bratislava | 2021/11/07 09:30 | Marvin Moeller v Christopher Heyman | 7-6,6-4 |
| Challenger Eckental | 2021/11/02 10:05 | Marvin Moeller v Mirza Basic | 2-6,5-7 |
| ITF M25 Sarreguemines | 2021/10/28 10:40 | Marvin Moeller v Hugo Voljacques | 0-6,2-6 |