Round: 25 Ground: Hardcourt indoor
| ITF Netherlands F5 | 2015/08/18 14:35 | Scott Griekspoor v Alexey Vatutin | 6-3,5-7,3-6 |
| ITF Finland F2 | 2015/08/11 11:45 | Jacob Adaktusson v Scott Griekspoor | 6-4,1-6,6-2 |
| ITF Finland F1 | 2015/08/05 08:20 | Casper Ruud v Scott Griekspoor | 6-4,6-7,6-2 |
| ITF Finland F1 | 2015/08/04 14:40 | Alex Hedman v Scott Griekspoor | 5-7,4-6 |
| ITF Belgium F6 | 2015/07/16 09:00 | Omar Salman v Scott Griekspoor | 7-6,6-3 |
| ITF Belgium F6 | 2015/07/14 12:00 | Loic Juszczak v Scott Griekspoor | 4-6,3-6 |
| ITF Belgium F5 | 2015/07/10 13:00 | Filip Horansky v Scott Griekspoor | 7-6,6-4 |
| ITF Belgium F5 | 2015/07/08 09:00 | Florian Lakat v Scott Griekspoor | 1-6,3-6 |
| ITF Norway F1 | 2015/10/18 08:00 | Piotr Grynkowski v Pedro Gabriel Rodrigues | 6-3,6-1 |
| ITF Turkey F37 | 2015/09/14 13:00 | Yasha Zemel v Piotr Grynkowski | 6-4,6-0 |
| ITF Turkey F37 | 2015/09/13 15:00 | Polat Gulcur v Piotr Grynkowski | 2-6,4-6 |
| ITF Turkey F36 | 2015/09/07 13:30 | Alexander Babanine v Piotr Grynkowski | 6-3,6-3 |
| ITF Turkey F35 | 2015/09/03 16:40 | Piotr Grynkowski v Matteo Berrettini | 2-6,2-6 |
| ITF Turkey F35 | 2015/09/01 14:35 | Scott Duncan v Piotr Grynkowski | 0-6,3-6 |
| ITF Turkey F35 | 2015/08/31 13:30 | Piotr Grynkowski v Atlymyrat Gurbanov | 6-2,6-0 |
| ITF Poland F2 | 2015/08/16 12:00 | Piotr Grynkowski v Bartosz Wojnar | 3-6,2-6 |