Stadium: Center Court (5) Round: 54 Ground: Clay
| ITF M25 Most | 2021/05/25 08:00 | Piotr Matuszewski v Hasan Ibrahim | 6-2,2-6,9-11 |
| ITF M25 Most | 2021/05/24 08:00 | Piotr Matuszewski v Theo Arribage | 7-5,7-5 |
| ITF M25 Most | 2021/05/23 08:00 | Piotr Matuszewski v Michal Novansky | 6-4,1-6,12-10 |
| ITF M25 Praha | 2021/05/09 07:30 | Pavel Nejedly v Piotr Matuszewski | 7-5,6-4 |
| ITF M15 Monastir | 2021/04/12 12:30 | Piotr Matuszewski v Sean Hodkin | 1-6,0-6 |
| ITF M15 Monastir | 2021/04/12 08:00 | Simon Yitbarek v Piotr Matuszewski | 1-6,2-6 |
| ITF M15 Monastir | 2021/04/11 10:00 | Jip Van Assendelft v Piotr Matuszewski | 5-7,4-6 |
| ITF M15 Monastir | 2021/04/05 09:00 | Igor Marcondes v Piotr Matuszewski | 7-6,6-3 |
| ITF M15 Gaiba | 2021/06/07 16:10 | Giorgio Ricca v Lorenzo Favero | 6-2,6-0 |
| ITF Italy F26 | 2018/09/01 08:30 | Lorenzo Favero v Leonardo Taddia | 5-7,3-6 |
| Challenger Padova | 2018/07/21 09:45 | Lorenzo Favero v Alessandro Petrone | 5-7,2-6 |