Round: 54 Ground: Hardcourt outdoor
| ITF Poland F2 | 2015/08/16 12:00 | Piotr Grynkowski v Bartosz Wojnar | 3-6,2-6 |
| ITF Poland F1 | 2015/08/09 08:00 | Maciej Nowak v Piotr Grynkowski | 6-4,7-6 |
| ITF Czech Republic F6 Qual | 2015/07/04 11:00 | Marek Rehacek v Piotr Grynkowski | 6-0,6-2 |
| ITF Czech Republic F6 Qual | 2015/07/04 07:00 | Martin Soukal v Piotr Grynkowski | 4-6,1-6 |
| ITF Turkey F21 | 2015/05/28 09:00 | Baptiste Crepatte v Piotr Grynkowski | 6-3,6-4 |
| ITF Turkey F21 | 2015/05/26 11:05 | Sasha Supruniuk v Piotr Grynkowski | 0-6,0-6 |
| ITF Turkey F21 Qual | 2015/05/23 07:00 | Stefan Frljanic v Piotr Grynkowski | 4-6,5-7 |
| ITF Turkey F36 | 2015/05/19 08:10 | Christopher Heyman v Piotr Grynkowski | 3-6,6-1,6-3 |
| ITF Turkey F35 | 2015/08/30 13:30 | Atlymyrat Gurbanov v Gurbanberdi Gurbanberdiyev | 6-2,7-5 |