Stadium: Court 1 Round: 54 Ground: Clay
| ITF Poland F4 | 2017/07/08 09:00 | Alexei Popyrin v Mariano Kestelboim | 6-4,7-6 |
| ITF Poland F4 | 2017/07/07 10:40 | David Poljak v Mariano Kestelboim | 1-6,4-6 |
| ITF Poland F4 | 2017/07/06 08:00 | Manuel Pena Lopez v Mariano Kestelboim | 5-7,3-6 |
| ITF Poland F4 | 2017/07/04 14:35 | Kacper Zuk v Mariano Kestelboim | 2-6,4-6 |
| ITF Poland F3 | 2017/06/29 11:30 | Mariano Kestelboim v Ronald Slobodchikov | 2-6,4-6 |
| ITF Poland F3 | 2017/06/27 13:10 | Mariano Kestelboim v Pawel Juszczak | 5-7,6-4,6-2 |
| ITF Poland F2 | 2017/06/21 09:00 | Andre Goransson v Mariano Kestelboim | 7-6,6-4 |
| ITF Poland F2 | 2017/06/19 13:50 | Lucas Gomez v Mariano Kestelboim | 2-6,4-6 |
| Challenger Braunschweig Qual | 2017/07/08 11:20 | Julian Onken v Nicola Kuhn | 4-6,3-6 |
| Challenger Braunschweig Qual | 2017/07/08 08:00 | Julian Onken v Arnd Weyhausen | 6-2,6-4 |
| ITF Germany F4 | 2017/06/22 15:25 | Dominik Boehler v Julian Onken | 6-3,6-1 |
| ITF Germany F4 | 2017/06/20 14:20 | Linus Krohn v Julian Onken | 5-7,6-7 |
| ITF Turkey F15 | 2017/04/18 10:15 | Julian Onken v Cem Ilkel | 2-6,3-6 |
| ITF Turkey F14 | 2017/04/13 08:30 | Marsel Ilhan v Julian Onken | 4-6,6-1,6-0 |
| ITF Turkey F14 | 2017/04/11 07:30 | Simon Navarro v Julian Onken | 2-6,7-6,2-6 |
| ITF Croatia F4 | 2017/03/28 12:00 | Julian Onken v Andrej Martin | 4-6,7-6,1-6 |