Round: 54 Ground: Hardcourt outdoor
| ITF Poland F2 | 2016/05/29 09:00 | Piotr Grynkowski v Marek Gengel | 5-7,4-6 |
| ITF Czech Republic F3 Qual | 2016/05/23 10:20 | Piotr Grynkowski v Vejvara, Lukas | 4-6,3-6 |
| ITF Czech Republic F3 Qual | 2016/05/22 09:30 | Piotr Grynkowski v Holis, Stepan | 6-2,6-3 |
| ITF Turkey F19 Qual | 2016/05/09 08:00 | Piotr Grynkowski v Durmus, Durukan | 6-7,6-0,6-7 |
| ITF Turkey F18 | 2016/05/05 08:00 | Dennis Novak v Piotr Grynkowski | 6-4,6-4 |
| ITF Turkey F18 | 2016/05/03 10:00 | Piotr Grynkowski v Haylaz, Muhammet | 6-4,6-3 |
| ITF Turkey F18 | 2016/05/01 12:00 | Piotr Grynkowski v Fernando Yamacita | 6-4,3-6,6-3 |
| Turkey F17, Singles Qualifying | 2016/04/27 09:20 | Piotr Grynkowski v Heyman, Christopher | 3-6,1-6 |
| ITF Poland F3 Qual | 2016/06/04 08:00 | Krawczynski, Karol v Dabryian, Artsiom | 3-6,6-4,6-2 |
| ITF Poland F2 | 2016/05/30 12:35 | Krawczynski, Karol v Andrzejczuk, Adrian | 3-6,7-5,3-6 |
| ITF Czech Republic F3 Qual | 2016/05/23 08:30 | Simunek, David v Krawczynski, Karol | 6-4,6-3 |
| ITF Czech Republic F3 Qual | 2016/05/21 11:30 | Krawczynski, Karol v Avetisyan, Michael | 6-3,6-1 |
| ITF Poland F4 Qual | 2015/08/31 08:00 | Maciej Rajski v Krawczynski, Karol | 6-2,6-2 |
| ITF Poland F4 Qual | 2015/08/30 07:30 | Krawczynski, Karol v Steinberger, Max | 7-5,6-1 |
| ITF Poland F3 Qual | 2015/08/23 08:00 | Krawczynski, Karol v Oleg Prihodko | 4-6,6-7 |
| ITF Poland F2 | 2015/08/17 08:00 | Krawczynski, Karol v Dembek, Michal | 2-6,6-7 |