Round: 1
| ITF Poland F4 | 2018/05/21 07:00 | Dembek, Michal v Kolasinski, Filip | 6-3,6-2 |
| Marbello Cup Exhibition Series | 2020/06/02 11:15 | Maciej Rajski v Dembek, Michal | 6-3,3-6,17-15 |
| ITF M15 Loule | 2020/03/10 11:35 | Turchetti, Nicolo v Dembek, Michal | 6-4,4-6,6-4 |
| ITF M15 Faro | 2020/03/04 10:00 | Mertens, Yannick v Dembek, Michal | 6-2,7-5 |
| ITF - M15 Héraklion | 2020/02/12 09:30 | Dembek, Michal v Petros Tsitsipas | 7-5,2-6,6-7 |
| ITF - M15 Antalya | 2019/12/17 07:00 | Dembek, Michal v Nedelko, Ivan | 7-6,5-7,2-6 |
| Antalya, Qualifications Simples M-ITF-TUR-33A | 2019/12/09 07:00 | Dembek, Michal v Igor Saveljic | 1-6,6-7 |
| ITF - M15 Monastir | 2019/11/27 12:40 | Dembek, Michal v Benjamin Lock | 6-7,2-6 |
| ITF M15 Prague | 2019/11/06 13:00 | Illya Beloborodko v Dembek, Michal | 6-2,7-6 |
| Marbello Cup Exhibition Series | 2020/06/02 09:10 | Daniel Michalski v Kolasinski, Filip | 2-6,6-7 |
| Challenger Szczecin | 2019/09/11 11:30 | Kolasinski, Filip v Arguello, Facundo | 4-6,6-7 |
| Challenger Szczecin | 2019/09/10 16:15 | Kolasinski, Filip v Louis Wessels | 6-3,7-5 |
| ITF M25 Poznan | 2019/08/22 14:25 | Hidalgo, Diego v Kolasinski, Filip | 6-3,7-5 |
| ITF M25 Poznan | 2019/08/21 10:00 | Matuszewski, Piotr v Kolasinski, Filip | 2-6,6-4,5-7 |
| ITF M25 Poznan | 2019/08/20 08:00 | Drzewiecki, Karol v Kolasinski, Filip | 7-5,5-7,10-12 |
| Irpin, Singles Qualifying M-ITF-UKR-04A | 2019/08/14 07:30 | Vladyslav Orlov v Kolasinski, Filip | 6-1,6-4 |
| Irpin, Singles Qualifying M-ITF-UKR-04A | 2019/08/13 10:20 | Kolasinski, Filip v Aleksandr Braynin | 6-4,6-0 |