Stadium: Court 2 Round: 25 Ground: Clay
| ITF - M15 Monastir | 2021/04/22 08:30 | Yitbarek, Simon v Dembek, Michal | 6-2,1-6,6-1 |
| ITF - M15 Monastir | 2021/04/21 08:30 | Iiro Vasa v Dembek, Michal | 5-7,7-5,2-6 |
| ITF - M15 Monastir | 2021/04/14 08:25 | Dembek, Michal v Eliakim Coulibaly | 6-3,3-6,2-6 |
| ITF - M15 Monastir | 2021/04/08 08:30 | Eliakim Coulibaly v Dembek, Michal | 4-6,7-6,6-2 |
| ITF - M15 Monastir | 2021/04/07 11:45 | Mikula, Michal v Dembek, Michal | 6-7,6-7 |
| ITF M15 Bratislava | 2021/03/13 09:30 | Fabian Marozsan v Dembek, Michal | 3-6,6-3,6-0 |
| ITF M15 Bratislava | 2021/03/12 09:00 | Dembek, Michal v Aleksander Orlikowski | 7-6,2-6,6-3 |
| ITF M15 Bratislava | 2021/03/11 10:50 | Petit, Gabriel v Dembek, Michal | 3-6,3-6 |