Stadium: Ustron 3 Round: 44 Ground: Clay
| ITF Poland F2 | 2018/05/06 08:00 | Janis Podzus v Piotr Grynkowski | 7-5,7-5 |
| ITF Poland F2 | 2018/05/05 12:30 | Noe Sytkow v Piotr Grynkowski | 2-6,7-6,1-6 |
| ITF Poland F1 | 2018/05/03 09:00 | Guy Den Heijer v Piotr Grynkowski | 6-1,6-2 |
| ITF Poland F1 | 2018/05/01 12:15 | Daniel Kossek v Piotr Grynkowski | 1-6,1-6 |
| ITF Poland F1 | 2018/04/30 07:00 | Dominik Recek v Piotr Grynkowski | 6-4,3-6,5-7 |
| ITF Poland F1 | 2018/04/29 07:00 | Duje Ajdukovic v Piotr Grynkowski | 6-3,5-7,3-6 |
| ITF Czech Republic F11 Qual | 2017/11/19 09:00 | Grzegorz Panfil v Piotr Grynkowski | 7-6,6-3 |
| ITF Czech Republic F8 Qual | 2017/10/30 11:00 | Tadeas Paroulek v Piotr Grynkowski | 6-2,5-7,6-3 |
| ITF Poland F4 | 2018/05/20 11:00 | Ramy Labna v Michal Skonieczny | 6-3,6-3 |
| ITF Poland F3 Qual | 2018/05/14 07:30 | Michal Mikula v Ramy Labna | 7-6,6-3 |
| ITF Poland F3 | 2018/05/13 11:30 | Ramy Labna v Patryk Krolik | 6-4,7-5 |
| ITF Poland F2 | 2018/05/06 10:30 | Ramy Labna v Yann Wojcik | 7-6,4-6,2-6 |
| ITF Poland F1 | 2018/04/28 10:30 | Ramy Labna v Cristopher Kohl | 3-6,5-7 |
| ITF Turkey F11 | 2018/03/18 07:00 | Gabriel Donev v Ramy Labna | 6-2,6-3 |
| ITF Turkey F11 | 2018/03/17 08:30 | Ramy Labna v Dietrich Dernowski | 6-2,6-0 |
| ITF Turkey F10 | 2018/03/10 08:30 | Ramy Labna v Tomas Gerini | 2-6,4-6 |