Stadium: Centre Court Round: 27 Ground: Clay
| ITF Germany F12 | 2017/08/24 10:15 | Marc Sieber v Gabriel Schmidt | 6-3,6-4 |
| ITF Germany F12 | 2017/08/23 15:00 | Marc Sieber v Joel Vincent Link | 6-4,6-1 |
| Challenger Meerbusch | 2017/08/17 11:00 | Marc Sieber v Karim-Mohamed Maamoun | 2-6,3-6 |
| Challenger Meerbusch | 2017/08/15 17:00 | Dustin Brown v Marc Sieber | 2-6,2-6 |
| Challenger Meerbusch Qual | 2017/08/14 09:30 | Marc Sieber v Daniel Gimeno-Traver | 7-5,6-3 |
| Challenger Meerbusch Qual | 2017/08/13 12:55 | Marc Sieber v Alexandar Lazarov | 6-3,6-2 |
| Challenger Marburg Qual | 2017/07/02 10:20 | Marc Sieber v Matthias Bachinger | 2-6,7-6,3-6 |
| Challenger Marburg Qual | 2017/07/01 10:00 | Marc Sieber v Amer Naow | 6-1,6-2 |
| ITF Germany F12 | 2017/08/24 14:10 | Robin Lang v Louis Wessels | 5-7,1-6 |
| ITF Germany F12 | 2017/08/23 12:30 | Adrian Obert v Louis Wessels | 4-6,5-7 |
| ITF Netherlands F5 | 2017/08/15 08:00 | Tim Van Terheijden v Louis Wessels | 6-2,7-6 |
| ATP Hamburg Qual | 2017/07/22 13:50 | Louis Wessels v Leonardo Mayer | 3-6,2-6 |
| ITF Germany F8 | 2017/07/19 10:00 | Louis Wessels v Mats Moraing | 1-6,6-3,2-6 |
| Challenger Braunschweig | 2017/07/11 09:00 | Louis Wessels v Oscar Otte | 1-6,4-6 |
| ITF Germany F6 | 2017/07/05 13:15 | Louis Wessels v Tim Ruehl | 3-6,4-6 |
| ITF Germany F5 | 2017/07/01 14:35 | Louis Wessels v Antoine Hoang | 1-6,5-7 |