Stadium: Court 2 Round: 45 Ground: Clay
| ITF Poland F11 | 2017/08/28 09:00 | Piotr Grynkowski v Adam Chadaj | 4-6,1-6 |
| ITF Poland F9 | 2017/08/16 10:20 | Piotr Grynkowski v Boy Westerhof | 1-6,4-6 |
| ITF Poland F9 | 2017/08/15 10:30 | Piotr Grynkowski v Maciej Nowak | 5-7,6-1,6-3 |
| ITF Poland F9 Qual | 2017/08/14 11:50 | Piotr Grynkowski v Maximilian Kaiser | 6-4,6-1 |
| ITF Poland F9 Qual | 2017/08/13 10:30 | Piotr Grynkowski v Mikolaj Borkowski | 6-2,7-6 |
| Challenger Poznan Qual | 2017/07/15 09:00 | Piotr Grynkowski v Norbert Tadyszak | 6-3,6-3 |
| ITF Poland F4 Qual | 2017/07/03 08:00 | Mattias Siimar v Piotr Grynkowski | 6-2,6-2 |
| ITF Poland F4 Qual | 2017/07/02 13:00 | Martins Rocens v Piotr Grynkowski | 4-6,2-6 |
| Challenger Bordeaux Qual | 2017/05/15 08:00 | Guillermo Duran v Mackenzie McDonald | 2-6,0-6 |
| Challenger Bordeaux Qual | 2017/05/13 15:10 | Guillermo Duran v Axel Michon | 2-6,7-5,6-1 |
| Challenger Aix en Provence Qual | 2017/05/08 10:30 | Elliot Benchetrit v Guillermo Duran | 6-1,7-6 |
| Challenger Aix en Provence Qual | 2017/05/07 14:40 | Guillermo Duran v Hugo Nys | 6-2,6-1 |
| Challenger Aix en Provence Qual | 2017/05/07 08:05 | Guillermo Duran v Romain Jouan | 6-4,6-2 |
| Challenger Szczecin Qual | 2016/09/10 12:35 | Julian Reister v Guillermo Duran | 6-3,6-2 |
| ATP Marrakech Qual | 2016/04/02 13:25 | Maxime Chazal v Guillermo Duran | 6-2,6-7,6-2 |
| Challenger Savannah | 2015/04/21 21:15 | Guillermo Duran v Tennys Sandgren | 5-7,6-4,6-7 |