Stadium: Court 4 Round: 26 Ground: Clay
| Challenger Sopot | 2018/07/30 12:30 | Daniel Michalski v Michal Dembek | 6-2,6-4 |
| ITF Poland F1 | 2018/05/02 08:00 | Michal Dembek v Daniel Michalski | 6-2,3-6,7-5 |
| ITF M15 Wroclaw | 2019/07/02 13:35 | Petr Hajek v Michal Dembek | 4-6,6-3,6-7 |
| ITF M25 Pardubice | 2019/06/24 11:00 | Vitaliy Sachko v Michal Dembek | 6-3,2-6,10-5 |
| Challenger Poznan | 2019/06/03 12:55 | Alessandro Bega v Michal Dembek | 6-3,6-3 |
| ITF M15 Tabarka | 2019/05/31 08:30 | Genaro Alberto Olivieri v Michal Dembek | 7-5,6-2 |
| ITF M15 Tabarka | 2019/05/30 12:30 | Michal Dembek v Louis Tessa | 6-4,4-6,6-0 |
| ITF M15 Tabarka | 2019/05/29 10:45 | Michal Dembek v Pedro Iamachkine | 3-6,6-1,7-5 |
| ITF M15 Tabarka | 2019/05/24 08:30 | Michal Dembek v Mohamed Aziz Dougaz | 3-6,6-7 |
| ITF M15 Tabarka | 2019/05/23 08:30 | Maxime Hamou v Michal Dembek | 6-7,3-6 |
| ITF M15 Wroclaw | 2019/07/03 08:00 | Ondrej Krstev v Daniel Michalski | 4-6,2-6 |
| ITF M15 Tabarka | 2019/06/28 08:00 | Daniel Michalski v Andrey Chepelev | 6-7,1-6 |
| ITF M15 Tabarka | 2019/06/27 10:05 | Daniel Michalski v Anas Fattar | 6-4,6-0 |
| ITF M15 Tabarka | 2019/06/25 09:40 | Daniel Michalski v Nicolo Turchetti | 6-4,6-2 |
| ITF M15 Tabarka | 2019/06/18 10:45 | Daniel Michalski v Sebastian Baez | 6-0,1-6,2-6 |
| Challenger Poznan | 2019/06/03 14:35 | Tallon Griekspoor v Daniel Michalski | 4-6,6-3,6-2 |
| ITF M15 Irpin | 2019/05/21 15:35 | Dmytro Kamynin v Daniel Michalski | 6-2,0-6,7-6 |
| ITF M15 Sharm El Sheikh | 2019/04/12 08:00 | Daniel Michalski v Kacper Zuk | 6-3,6-2 |