| 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 F18 | 2015/05/02 09:00 | Yvo Panak v Piotr Grynkowski | 7-5,6-2 |
| ITF Turkey F17 | 2015/04/28 09:15 | Piotr Grynkowski v Lucas Miedler | 3-6,0-6 |
| ITF Turkey F17 | 2015/04/27 08:00 | Piotr Grynkowski v Joel Vincent Link | 6-2,6-3 |
| ITF Egypt F33 | 2015/03/29 10:00 | Piotr Grynkowski v Flemming Peters | 7-5,5-7,6-3 |