Round: 54 Ground: Carpet indoor
| ITF Poland F4 | 2018/05/22 08:55 | Pawel Juszczak v Piotr Grynkowski | 6-2,6-3 |
| ITF Poland F4 | 2018/05/21 07:00 | Piotr Grynkowski v Ramy Labna | 6-3,7-6 |
| 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 Poland F4 | 2018/05/20 11:00 | Ramy Labna v Michal Skonieczny | 6-3,6-3 |
| ITF Egypt F3 | 2018/01/27 12:00 | Michal Skonieczny v Vinayak Sharma Kaza | 3-6,2-6 |
| ITF Egypt F2 | 2018/01/20 11:30 | Michal Skonieczny v Gabor Borsos | 3-6,2-6 |
| ITF Egypt F38 | 2017/12/11 08:30 | Michal Skonieczny v Manfred Fellin | 6-4,0-6,5-7 |
| ITF Egypt F38 | 2017/12/10 08:00 | Erroll Lawrence v Michal Skonieczny | 3-6,2-6 |
| ITF Egypt F38 | 2017/12/09 08:00 | Terence Atmane v Michal Skonieczny | 7-6,4-6,5-7 |
| ITF Poland F7 Qual | 2017/07/22 11:00 | Oleksander Kyrychenko v Michal Skonieczny | 6-2,6-2 |
| ITF Poland F6 Qual | 2017/07/16 10:30 | Patryk Krolik v Michal Skonieczny | 6-4,6-1 |