| ITF Poland F1 | 04/29 07:00 | 62 | Matuszewski, Piotr v Recek, Dominik | 2-6,6-4,2-6 | |
| ITF Poland F1 | 04/28 10:30 | 62 | Matuszewski, Piotr v Araya, Javier | 6-2,6-4 | |
| ITF Egypt F13 | 04/07 12:00 | 62 | Matuszewski, Piotr v Brymer, Gage | 0-6,2-6 | |
| Egypt F12, Singles Qualifying | 04/02 08:30 | 62 | Matuszewski, Piotr v Saidkarimov, Saida' Lo | 6-7,0-6 | |
| Egypt F12, Singles Qualifying | 04/01 08:00 | 62 | Matuszewski, Piotr v Pruner Neto, Antonio | 6-4,6-2 | |
| ITF Tunisia F9 | 03/06 11:10 | 25 | Krawietz, Kevin v Matuszewski, Piotr | 6-2,7-5 | |
| ITF Tunisia F8 | 02/28 13:50 | 25 | Matuszewski, Piotr v Dischinger, Eduardo | Retired | |
| ITF Tunisia F8 | 02/26 09:00 | 44 | Matuszewski, Piotr v Munafo, Pedro | 6-3,6-2 | |
| ITF Tunisia F8 | 02/25 08:30 | 44 | Matuszewski, Piotr v Sardella, Edoardo | 6-4,7-6 | |
| Czech Republic F11, Singles | 11/21 12:00 | 25 | Krstev, Ondrej v Matuszewski, Piotr | Retired | |
| ITF Czech Republic F8 | 11/01 09:00 | 25 | Matuszewski, Piotr v Petr Michnev | 2-6,6-7 | |
| ITF Czech Republic F7 | 10/25 15:25 | 25 | Matuszewski, Piotr v Lukas Klein | 4-6,3-6 | |
| ITF Egypt F28 | 10/04 17:35 | 25 | Perez Sanz, David v Matuszewski, Piotr | 6-3,6-2 | |
| ITF Egypt F27 | 09/26 14:00 | 25 | Nema, Patrik v Matuszewski, Piotr | 6-3,6-3 | |
| Challenger Szczecin Qual | 09/09 09:00 | 45 | Panfil, Grzegorz v Matuszewski, Piotr | 6-1,6-0 | |
| ITF Poland F8 | 08/03 10:00 | 26 | Matuszewski, Piotr v Neubau, Marco | 4-6,6-3,3-6 | |
| ITF Poland F8 | 08/01 12:00 | - | Matuszewski, Piotr v Przemysaw Kwiatkowski | 6-0,5-0 | |
| ITF Poland F7 | 07/27 09:30 | 25 | Matuszewski, Piotr v Kazakov, Lev | 4-6,6-4,6-7 | |
| ITF Poland F7 | 07/26 09:30 | - | Matuszewski, Piotr v Kazakov, Lev | 4-6,6-4,6-7 | |
| ITF Poland F6 | 07/21 09:00 | 27 | Matuszewski, Piotr v Chadaj, Adam | 1-6,4-6 | |
| ITF Poland F6 | 07/20 11:30 | 26 | Matuszewski, Piotr v Nazaruk, Dominik | 7-5,6-2 | |
| ITF Poland F6 | 07/18 08:00 | 25 | Matuszewski, Piotr v Boychuk, Roman | 7-5,5-7,6-2 | |
| ITF Poland F4 | 07/03 11:00 | 25 | Billy Harris v Matuszewski, Piotr | 4-6,6-3,6-1 | |
| ITF Poland F3 | 07/01 11:00 | 28 | Alexandre Muller v Matuszewski, Piotr | 6-3,6-1 | |
| ITF Poland F3 | 06/30 12:00 | 27 | Slobodchikov, Ronald v Matuszewski, Piotr | 2-6,4-6 | |
| ITF Poland F3 | 06/30 08:00 | 26 | Matuszewski, Piotr v Gomez, Lucas | 6-4,6-2 | |
| ITF Poland F3 | 06/27 13:00 | 25 | Matuszewski, Piotr v Marse-Vidri, Jordi | 7-6,6-1 | |
| ITF Poland F2 | 06/19 13:50 | 25 | Eriksson, Markus v Matuszewski, Piotr | 4-6,6-3,6-4 | |
| ITF Poland F1 | 06/11 08:00 | 62 | Matuszewski, Piotr v Karl Friberg | 6-7,6-7 | |
| ITF Poland F1 | 06/11 08:00 | 62 | Matuszewski, Piotr v Mlazga, Adam | 6-4,6-3 |