Round: 44 Ground: Clay
| ITF Poland F4 | 2018/05/20 11:00 | Dembek, Michal v Vrba, Daniel | 6-2,6-3 |
| ITF Poland F3 | 2018/05/18 10:00 | Marek Jaloviec v Dembek, Michal | 7-5,6-2 |
| ITF Poland F3 | 2018/05/15 07:30 | Jofre, Facundo v Dembek, Michal | 2-6,2-6 |
| ITF Poland F1 | 2018/05/05 10:00 | Dembek, Michal v Michael Vrbensky | 7-5,6-7,1-6 |
| ITF Poland F1 | 2018/05/04 12:15 | Dembek, Michal v Meis, Pascal | 7-5,3-6,6-3 |
| ITF Poland F1 | 2018/05/02 08:00 | Dembek, Michal v Daniel Michalski | 6-2,3-6,7-5 |
| ITF Poland F1 | 2018/05/01 07:30 | Dembek, Michal v Kirkov, Vasil | 6-1,6-0 |
| ITF Kazakhstan F4 | 2018/04/16 11:25 | Vasilyev, Ilya v Dembek, Michal | 6-4,6-3 |
| ITF Poland F4 | 2018/05/20 11:00 | Kolasinski, Filip v Collins, Sean | 6-3,6-3 |