Stadium: Center Court Round: 26 Ground: Clay
| ITF Germany F10 | 2017/08/08 15:00 | Kai Wehnelt v Maikel Borg | 6-4,6-3 |
| ITF Germany F8 | 2017/07/20 16:05 | Kai Wehnelt v Jurgen Zopp | 1-6,1-6 |
| ITF Germany F8 | 2017/07/18 15:35 | David Pichler v Kai Wehnelt | 7-5,0-6,1-6 |
| Challenger Marburg | 2017/07/03 10:00 | Andrej Martin v Kai Wehnelt | 6-3,6-3 |
| ITF Germany F10 | 2015/08/04 11:10 | Adrian Obert v Kai Wehnelt | 7-5,6-1 |
| ITF Germany F10 | 2014/07/30 11:00 | Kai Wehnelt v Jannis Kahlke | 0-6,6-7 |
| ITF Germany F10 | 2017/08/08 14:20 | Julian Lenz v Sebastian Fanselow | 7-5,3-6,6-4 |
| Challenger Liberec Qual | 2017/07/29 10:00 | Julian Lenz v Juan Pablo Ficovich | 6-4,3-6,2-6 |
| ITF Germany F8 | 2017/07/20 14:10 | Julian Lenz v Jan Choinski | 7-5,6-7,0-6 |
| ITF Germany F8 | 2017/07/19 15:30 | Matthew Dellavedova v Julian Lenz | 3-6,4-6 |
| Challenger Marburg | 2017/07/03 15:30 | Cedrik-Marcel Stebe v Julian Lenz | 6-3,7-6 |
| Challenger Lisbon Qual | 2017/06/12 10:00 | Julian Lenz v Dragos Dima | 4-6,3-6 |
| Challenger Lisbon Qual | 2017/06/11 10:00 | Danilo Petrovic v Julian Lenz | 6-7,6-4,3-6 |
| Challenger Lisbon Qual | 2017/06/10 11:40 | Julian Lenz v Andriej Kapas | 6-4,6-3 |