Stadium: Center Court Round: 26 Ground: Hardcourt indoor
| Poznan, Poland | 2018/06/06 10:00 | Dembek, Michal v Donati, Matteo | 6-7,3-6 |
| ITF M15 Nur-Sultan | 2021/02/10 08:50 | Timofey Skatov v Dembek, Michal | 3-6,4-6 |
| ITF M15 Nur-Sultan | 2021/02/06 05:55 | Otto Virtanen v Dembek, Michal | 3-6,6-3,6-4 |
| ITF M15 Nur-Sultan | 2021/02/05 06:00 | Marek, Wojciech v Dembek, Michal | 1-6,4-6 |
| ITF M15 Nur-Sultan | 2021/02/04 06:30 | Dembek, Michal v Forti, Francesco | 6-3,6-4 |
| ITF M15 Nur-Sultan | 2021/02/03 04:00 | Dembek, Michal v Bondarevskiy, Yan | 7-5,6-3 |
| ITF - M15 Monastir | 2020/12/12 09:50 | Dembek, Michal v Dubrivnyy, Artem | 2-6,1-6 |
| ITF - M15 Monastir | 2020/12/11 09:45 | Dembek, Michal v Luca Potenza | 7-6,2-6,6-4 |
| ITF - M15 Monastir | 2020/12/10 08:00 | Zukas, Matias v Dembek, Michal | 4-6,1-6 |
| ITF M15 Nur-Sultan | 2021/02/10 07:30 | Donati, Matteo v Tashbulatov, Dostanbek | 7-5,6-2 |
| ITF M15 Nur-Sultan | 2021/02/05 06:00 | Donati, Matteo v Otto Virtanen | 2-6,4-6 |
| ITF M15 Nur-Sultan | 2021/02/04 07:40 | Donati, Matteo v Grigoriy Lomakin | 6-2,6-1 |
| ITF M15 Nur-Sultan | 2021/02/03 05:40 | Smith, Roy v Donati, Matteo | 7-5,4-6,6-7 |
| Sophia Antipolis, France | 2019/04/05 10:00 | Donati, Matteo v Brown, Dustin | 5-7,2-6 |
| Sophia Antipolis, France | 2019/04/04 08:30 | Donati, Matteo v Enzo Couacaud | 6-7,7-6,6-2 |
| Sophia Antipolis, France | 2019/04/01 11:50 | Donati, Matteo v Kenny de Schepper | 6-2,6-0 |
| Marbella, Spain | 2019/03/27 11:40 | Thiago Monteiro v Donati, Matteo | 7-6,6-4 |