Round: 62 Ground: Hardcourt outdoor
| ITF Slovakia F3 | 2016/08/09 07:30 | Piotr Grynkowski v Valentin Vacherot | 6-2,4-6,2-6 |
| ITF Slovakia F3 | 2016/08/08 07:30 | Piotr Grynkowski v Christophe Nickels | 6-4,6-4 |
| ITF Poland F4 Qual | 2016/06/13 08:00 | Tadas Tarasevicius v Piotr Grynkowski | 7-6,6-1 |
| ITF Poland F4 Qual | 2016/06/12 08:00 | Antoine Leduc v Piotr Grynkowski | 2-6,1-6 |
| ITF Poland F3 | 2016/06/08 14:00 | Kamil Majchrzak v Piotr Grynkowski | 6-1,6-2 |
| ITF Poland F3 | 2016/06/06 09:00 | Piotr Grynkowski v Maciej Smola | 6-4,6-1 |
| ITF Poland F3 Qual | 2016/06/05 08:00 | Piotr Grynkowski v Karol Krawczynski | 6-4,6-3 |
| ITF Poland F2 | 2016/05/29 09:00 | Piotr Grynkowski v Marek Gengel | 5-7,4-6 |
| ITF Poland F2 | 2015/08/18 10:45 | Alexandr Kushakov v Adam Chadaj | 3-6,6-7 |
| ITF Poland F2 | 2015/08/17 08:00 | Kamil Gajewski v Adam Chadaj | 0-6,2-6 |
| ITF Poland F2 | 2015/08/16 08:00 | Michal Bedra v Adam Chadaj | 0-6,0-6 |
| ITF Poland F1 | 2015/08/11 10:25 | Zdenek Kolar v Adam Chadaj | 6-4,6-2 |
| ITF Latvia F1 | 2015/08/03 08:10 | Adam Chadaj v Francesco Picco | 4-6,3-6 |
| ITF Latvia F1 | 2015/08/02 07:00 | Adam Chadaj v Aland Moyna | 6-2,6-0 |
| ITF Estonia F1 | 2015/07/26 07:00 | Adam Chadaj v Hunter Reese | 6-1,6-0 |
| ITF Estonia F1 | 2015/07/25 12:00 | Adam Chadaj v Bastian Parada | 6-1,6-1 |