Round: 26 Ground: Clay
| ITF Poland F6 | 2017/07/18 08:00 | Piotr Matuszewski v Roman Boychuk | 7-5,5-7,6-2 |
| ITF Poland F4 | 2017/07/03 11:00 | Billy Harris v Piotr Matuszewski | 4-6,6-3,6-1 |
| ITF Poland F3 | 2017/07/01 11:00 | Alexandre Muller v Piotr Matuszewski | 6-3,6-1 |
| ITF Poland F3 | 2017/06/30 12:00 | Ronald Slobodchikov v Piotr Matuszewski | 2-6,4-6 |
| ITF Poland F3 | 2017/06/30 08:00 | Piotr Matuszewski v Lucas Gomez | 6-4,6-2 |
| ITF Poland F3 | 2017/06/27 13:00 | Piotr Matuszewski v Jordi Marse-Vidri | 7-6,6-1 |
| ITF Poland F2 | 2017/06/19 13:50 | Markus Eriksson v Piotr Matuszewski | 4-6,6-3,6-4 |
| ITF Poland F1 | 2017/06/11 08:00 | Piotr Matuszewski v Karl Friberg | 6-7,6-7 |
| ITF Poland F6 | 2017/07/18 14:25 | Santiago Maresca v Dominik Nazaruk | 6-4,2-6,4-6 |
| ITF Poland F6 Qual | 2017/07/17 11:30 | Michal Mikula v Dominik Nazaruk | 7-5,4-6,4-6 |
| ITF Poland F6 Qual | 2017/07/16 08:00 | Dominik Nazaruk v Mikolaj Borkowski | 4-6,6-3,6-2 |
| ITF Poland F5 Qual | 2017/07/08 07:00 | Julius Tverijonas v Dominik Nazaruk | 6-3,6-3 |
| ITF Poland F4 Qual | 2017/07/02 13:00 | Luigi Sorrentino v Dominik Nazaruk | 6-2,6-3 |
| ITF Poland F4 Qual | 2017/07/01 09:00 | Daniil Tsebrenko v Dominik Nazaruk | 2-6,2-6 |
| ITF Poland F2 | 2017/06/18 08:30 | Billy Harris v Dominik Nazaruk | 6-0,6-1 |
| ITF Indonesia F6 | 2017/04/09 04:00 | Dong-Kyu Lee v Dominik Nazaruk | 7-5,6-4 |