Stadium: Court 9 Round: 44 Ground: Clay
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 11:05 | Piotr Matuszewski v Simon Sedliak | 2-6,6-4,10-4 |
| Polish National Tour | 2021/07/13 10:35 | Piotr Matuszewski v Wojciech Marek | 6-4,6-3 |
| ITF M25 Casinalbo | 2021/07/05 07:30 | Piotr Matuszewski v Gabriel Roveri Sidney | 6-2,4-6,6-10 |
| ITF M25 Casinalbo | 2021/07/04 08:45 | Piotr Matuszewski v Lorenzo Favero | 6-4,6-4 |
| 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 Prague | 2021/05/09 07:30 | Pavel Nejedly v Piotr Matuszewski | 7-5,6-4 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 12:30 | Alexander Wolfschmidt v Dawid Taczala | 0-6,5-7 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 13:25 | Dawid Taczala v Nikolas Lahky | 6-2,6-2 |
| ITF M25 Poznan | 2020/08/23 09:30 | Dawid Taczala v Adrian Oetzbach | 3-6,2-6 |