Round: 44 Ground: Clay
| ITF Poland F7 | 2018/08/11 11:00 | Patryk Kosinski v Mateusz Piatek | 5-7,2-6 |
| ITF Poland F6 | 2018/08/07 14:50 | Petr Hajek v Mateusz Piatek | 6-3,6-1 |
| ITF Poland F6 Qual | 2018/08/06 09:50 | Mikolaj Borkowski v Mateusz Piatek | 1-6,1-6 |
| ITF Poland F6 Qual | 2018/08/05 09:30 | Mateusz Piatek v Bartlomiej Andrzejczak | 6-1,6-2 |
| ITF Poland F4 | 2018/05/20 07:00 | Filip Kucbel v Mateusz Piatek | 6-4,4-6,6-3 |
| ITF Poland F3 | 2018/05/13 11:30 | Patrick Daciek v Mateusz Piatek | 7-6,6-1 |
| ITF Poland F2 | 2018/05/05 11:00 | Jordi Marse-Vidri v Mateusz Piatek | 6-7,6-2,6-2 |
| ITF Tunisia F15 | 2018/04/15 09:00 | Quentin Robert v Mateusz Piatek | 6-2,6-1 |
| ITF Poland F6 Qual | 2018/08/04 08:00 | Juliusz Bienkiewicz v Jan Zielinski | 3-6,3-6 |