| ITF Czech Republic F2 | 05/26 10:30 | 27 | Piotr Matuszewski v Johannes Haerteis | 3-6,1-6 | |
| ITF Czech Republic F2 | 05/25 10:30 | 26 | Dominik Kellovsky v Piotr Matuszewski | 1-6,0-6 | |
| ITF Czech Republic F2 | 05/23 09:00 | 25 | Eduardo Dischinger v Piotr Matuszewski | 3-6,6-2,4-6 | |
| ITF Czech Republic F1 Qual | 05/13 10:30 | 62 | Piotr Matuszewski v Juraj Masar | 2-6,6-3,4-6 | |
| Challenger Ostrava Qual | 04/29 14:00 | 45 | Piotr Matuszewski v Carlos Taberner | 6-7,0-6 | |
| ITF Egypt F12 | 04/04 08:00 | 25 | Tomas Papik v Piotr Matuszewski | 7-6,6-7,6-0 | |
| ITF Egypt F12 | 04/03 08:00 | 62 | Piotr Matuszewski v Szymon Walkow | 6-4,6-4 | |
| ITF Egypt F12 | 04/02 08:00 | 62 | Piotr Matuszewski v Mateusz Smolicki | 6-2,3-6,6-1 | |
| ITF Egypt F20 | 03/26 08:00 | 62 | Piotr Matuszewski v Ren Nakamura | 2-6,3-6 | |
| ITF Egypt F20 | 03/25 07:00 | 62 | Piotr Matuszewski v Yannick Lenaerts | 6-4,6-2 | |
| Challenger Wroclaw Qual | 02/25 12:10 | 45 | Piotr Matuszewski v Matej Vocel | 6-7,6-7 | |
| ITF Great Britain F3 | 02/13 12:00 | 44 | Piotr Matuszewski v Scott Duncan | Retired | |
| ITF Great Britain F3 | 02/12 13:00 | 44 | Piotr Matuszewski v Joshua Rose | 7-6,6-3 | |
| ITF Turkey F2 | 01/17 12:50 | 44 | Piotr Matuszewski v Florian Jakob | 2-6,4-6 | |
| ITF Turkey F2 | 01/16 12:00 | 44 | Piotr Matuszewski v Alexander Donski | 7-5,7-6 | |
| ITF Turkey F1 | 01/09 07:00 | 25 | Amaury Delmas v Piotr Matuszewski | 6-1,6-0 | |
| ITF Egypt F34 | 11/26 14:00 | 28 | Leny Mitjana v Piotr Matuszewski | 6-4,6-4 | |
| ITF Egypt F34 | 11/25 14:00 | 27 | Tsung-Hua Yang v Piotr Matuszewski | 6-4,6-7,2-6 | |
| ITF Egypt F34 | 11/24 14:00 | 26 | Piotr Matuszewski v Andre Gaspar Murta | 6-1,6-3 | |
| ITF Egypt F34 | 11/23 17:55 | 25 | Piotr Matuszewski v Szymon Walkow | 7-6,6-3 | |
| ITF Egypt F33 | 11/17 15:20 | 26 | Piotr Matuszewski v Kacper Zuk | Retired | |
| ITF Egypt F33 | 11/15 14:00 | 25 | Corentin Moutet v Piotr Matuszewski | 6-2,4-6,4-6 | |
| ITF Egypt F28 | 10/13 13:30 | 26 | Adrian Sikora v Piotr Matuszewski | 6-3,4-6,6-1 | |
| ITF Egypt F28 | 10/12 15:20 | 25 | Luke Johnson v Piotr Matuszewski | 6-3,3-6,4-6 | |
| ITF Egypt F27 | 10/08 16:00 | 28 | Piotr Matuszewski v Lloyd Harris | 6-2,4-6,2-6 | |
| ITF Egypt F27 | 10/07 16:00 | 27 | Piotr Matuszewski v Michal Dembek | 5-7,6-1,6-3 | |
| ITF Egypt F27 | 10/06 16:00 | 26 | Piotr Matuszewski v Szymon Walkow | 6-4,6-4 | |
| ITF Egypt F27 Qual | 10/03 16:00 | 54 | Piotr Matuszewski v Arpit Sharma | 6-0,6-2 | |
| ITF Egypt F27 Qual | 10/02 16:00 | 54 | Moritz Trocker v Piotr Matuszewski | 3-6,2-6 | |
| ITF Poland F6 | 08/23 08:00 | 25 | Piotr Matuszewski v Daniel Masur | 6-7,4-6 |