Round: 44 Ground: Carpet indoor
| ITF Germany F15 | 2017/10/16 08:00 | Ryan Peniston v Tim Seibert | 6-1,6-4 |
| ITF Germany F11 | 2017/08/13 13:00 | Jakob Aichhorn v Tim Seibert | 6-4,6-7,6-1 |
| ITF Germany F11 | 2017/08/13 08:00 | Tim Seibert v Marek Flinner | 7-6,6-2 |
| ITF Germany F10 | 2017/08/06 11:00 | Eduardo Dischinger v Tim Seibert | 6-0,7-5 |
| ITF Germany F9 | 2017/07/31 15:00 | Tim Seibert v Matthew Dellavedova | 6-2,4-6,2-6 |
| ITF Germany F9 | 2017/07/31 09:00 | Tim Seibert v Hazem Naw | 7-6,0-6,6-2 |
| ITF Germany F9 | 2017/07/30 10:30 | Floris Van Den Brink v Tim Seibert | 2-6,4-6 |
| ITF Germany F2 Qual | 2017/01/16 14:00 | Tim Seibert v Vincent Jaensch-Mueller | 2-6,1-6 |
| ITF Germany F15 | 2017/10/15 12:00 | Valentin Guenther v Justin Boulais | 6-3,6-1 |
| ITF Germany F14 | 2017/10/10 10:00 | Elmar Ejupovic v Valentin Guenther | 6-4,6-7,6-3 |
| ITF Germany F14 | 2017/10/09 10:00 | Shalva Dzhanashia v Valentin Guenther | 5-7,3-6 |
| ITF Germany F14 | 2017/10/08 11:30 | Robert Strombachs v Valentin Guenther | 6-2,3-6,4-6 |
| ITF Italy F30 | 2017/09/18 14:30 | Valentin Guenther v Maxime Chazal | 1-6,1-6 |
| ITF Italy F30 | 2017/09/17 13:00 | Toby Martin v Valentin Guenther | 6-2,6-4 |
| ITF Italy F30 | 2017/09/16 13:00 | Denis Golubev v Valentin Guenther | 2-6,2-6 |
| ITF Italy F29 | 2017/09/13 14:55 | Valentin Guenther v Benjamin Pietri | 4-6,4-6 |