Round: 26 Ground: Clay
| ITF Germany F4 | 2017/06/20 09:00 | Fernando Yamacita v Dominik Boehler | 6-3,2-6,3-6 |
| Challenger Heilbronn Qual | 2017/05/13 12:30 | Dominik Boehler v John-Patrick Smith | 5-7,5-7 |
| ITF France F10 | 2017/05/01 13:10 | Dominik Boehler v Maxime Hamou | 5-7,5-7 |
| ITF Greece F5 | 2017/04/04 10:00 | Dominik Boehler v Liam Caruana | 1-6,3-6 |
| ITF Portugal F4 | 2017/03/29 17:15 | Samuel Bensoussan v Dominik Boehler | 6-3,3-6,6-3 |
| ITF Greece F2 Qual | 2017/03/14 07:30 | Dominik Boehler v Delf Gohlke | 6-2,7-5 |
| ITF Greece F1 | 2017/03/10 07:30 | Sebastian Ofner v Dominik Boehler | 7-6,6-2 |
| ITF Greece F1 | 2017/03/08 15:15 | Dominik Boehler v Christian Hirschmueller | 6-3,6-4 |
| 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 |
| ITF Croatia F3 | 2017/03/21 09:00 | Jurij Rodionov v Julian Onken | 2-6,7-6,6-1 |
| ITF Croatia F2 | 2017/03/16 12:05 | Pere Riba v Julian Onken | 6-1,6-2 |
| ITF Croatia F2 | 2017/03/15 09:00 | Julian Onken v Denys Mylokostov | 6-4,7-5 |