Stadium: Center Court Round: 45
| 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 |
| 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 Germany F5 | 2017/06/26 15:00 | Arnd Weyhausen v Alex Solanki | 4-6,6-7 |
| ITF Germany F4 | 2017/06/19 11:00 | Arnd Weyhausen v Niclas Braun | 2-6,6-4,3-6 |
| ITF Germany F4 | 2017/06/18 15:30 | Arnd Weyhausen v Daniel Kopeinigg | 6-2,0-6,6-2 |
| ITF Germany F4 | 2017/06/17 14:00 | Arnd Weyhausen v Lewie Lane | 6-3,6-2 |
| ITF Turkey F11 | 2017/03/19 07:00 | Arnd Weyhausen v Shalva Dzhanashia | 2-6,1-6 |
| ITF Turkey F11 | 2017/03/18 07:00 | Arnd Weyhausen v Filip Ambrozy | 6-1,6-0 |
| ITF Germany F16 | 2016/10/27 10:35 | Arnd Weyhausen v Jelle Sels | 1-6,6-1,3-6 |
| ITF Germany F16 | 2016/10/26 09:00 | Yan Sabanin v Arnd Weyhausen | 4-6,3-6 |