Stadium: Court 21 Round: 25 Ground: Clay
| ITF Poland F7 | 2018/08/13 12:25 | Heyman, Christopher v Dembek, Michal | 6-2,7-5 |
| ITF M15 Novomoskovsk | 2021/05/27 10:40 | Dembek, Michal v Felix Gill | 3-6,5-7 |
| ITF M15 Novomoskovsk | 2021/05/25 12:30 | Dembek, Michal v Artem Podorozhnyi | 6-1,6-2 |
| 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 Antalya | 2021/04/30 09:30 | Heyman, Christopher v Francesco Forti | 7-5,4-6,6-2 |
| ITF - M15 Antalya | 2021/04/29 11:45 | Heyman, Christopher v Mats Rosenkranz | 4-6,6-4,7-5 |
| ITF - M15 Antalya | 2021/04/28 11:00 | Heyman, Christopher v Nicholas David Ionel | 6-4,6-4 |
| ITF - M15 Antalya | 2021/04/25 09:25 | Fabian Marozsan v Heyman, Christopher | 2-6,6-4,2-6 |
| ITF - M15 Antalya | 2021/04/24 07:30 | Frunza, Nicolae v Heyman, Christopher | 3-6,3-6 |
| ITF - M15 Antalya | 2021/04/23 07:00 | Oleksandr Ovcharenko v Heyman, Christopher | 6-3,0-6,6-7 |
| ITF - M15 Antalya | 2021/04/22 08:20 | Maggioli, Emiliano v Heyman, Christopher | 5-7,4-6 |
| ITF - M15 Antalya | 2021/04/20 08:30 | Koray Kirci v Heyman, Christopher | 1-6,1-6 |