stadio: Court 3 Round: 62 Ground: Clay
| Challenger Portoroz - Qual. | 2017/08/05 07:30 | Enej Berghaus v Igor Zelenay | 6-7,1-6 |
| ITF Ungheria F7 - Qual. | 2017/08/27 11:00 | Milen Ianakiev v Leon Petko | 6-4,6-0 |
| ITF Ungheria F6 - Qual. | 2017/08/21 08:30 | Isa Mammetgulyyev v Leon Petko | 6-3,6-4 |
| ITF Slovacchia F3 | 2017/08/07 10:00 | Darko Bojanovic v Leon Petko | 6-3,6-2 |
| ITF Slovacchia F3 | 2017/08/06 07:00 | Patrik Jancovic v Leon Petko | 6-2,3-6,2-6 |
| ITF Slovacchia F2 | 2017/07/31 09:00 | Juraj Masar v Leon Petko | 6-3,6-1 |
| ITF Polonia F6 - Qual. | 2017/07/15 11:00 | Oleksander Kyrychenko v Leon Petko | 6-3,6-0 |
| ITF Polonia F5 - Qual. | 2017/07/10 09:40 | Ronald Slobodchikov v Leon Petko | 6-3,6-3 |
| ITF Polonia F5 - Qual. | 2017/07/09 08:00 | Javier Apellaniz Napal v Leon Petko | 4-6,6-4,2-6 |