Round: 44 Ground: Clay
| ITF Poland F6 | 2018/08/09 14:50 | Maciej Rajski v Patryk Kosinski | 6-3,6-4 |
| ITF Poland F6 | 2018/08/07 12:30 | Patryk Kosinski v Michal Skonieczny | 6-2,7-6 |
| ITF Poland F6 Qual | 2018/08/06 10:55 | David Bogatin v Patryk Kosinski | 2-6,5-7 |
| ITF Poland F6 Qual | 2018/08/05 12:30 | Patryk Kosinski v Daniil Tsebrenko | 6-1,7-6 |
| ITF Poland F6 Qual | 2018/08/04 11:00 | Robert Hughes v Patryk Kosinski | 2-6,2-6 |
| Challenger Szczecin Qual | 2017/09/10 09:00 | Constant Lestienne v Patryk Kosinski | 6-0,6-0 |
| Challenger Szczecin Qual | 2017/09/09 09:00 | Patryk Kosinski v Krzysztof Wetoszka | 5-7,7-5,7-6 |
| 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 Tunisia F15 | 2018/04/14 09:00 | Mateusz Piatek v Oleksander Kyrychenko | 7-5,6-1 |