Round: 25 Ground: Hardcourt outdoor
| ITF Egypt F8 | 2017/03/08 08:00 | Marc Sieber v Rudolf Molleker | 2-6,4-6 |
| ITF Turkey F7 | 2017/02/21 07:00 | Marc Sieber v Cem Ilkel | 3-6,6-7 |
| ITF Turkey F6 | 2017/02/19 08:30 | Benjamin Lock v Marc Sieber | 3-6,6-7 |
| ITF Turkey F6 | 2017/02/18 08:00 | Christopher Heyman v Marc Sieber | 3-6,1-6 |
| ITF Turkey F6 | 2017/02/17 07:30 | Felipe Mantilla v Marc Sieber | 1-6,6-7 |
| ITF Turkey F6 | 2017/02/16 09:25 | Alexios Halebian v Marc Sieber | 1-6,0-6 |
| ITF Turkey F6 | 2017/02/14 09:05 | Marat Deviatiarov v Marc Sieber | 2-6,1-6 |
| Challenger Budapest | 2017/02/08 09:30 | Joris De Loore v Marc Sieber | 6-3,7-6 |
| ITF France F4 | 2017/02/28 10:10 | Oscar Otte v Jannis Kahlke | 6-4,6-1 |
| ITF France F4 Qual | 2017/02/26 10:40 | Kevin Griekspoor v Jannis Kahlke | 4-6,7-5,2-6 |
| ITF France F4 Qual | 2017/02/25 09:00 | Thibault Venturino v Jannis Kahlke | 2-6,6-7 |
| ITF Great Britain F3 | 2017/02/12 13:00 | Rayan Ghedjemis v Jannis Kahlke | 7-6,6-2 |
| ITF Great Britain F2 | 2017/02/06 10:30 | Jannis Kahlke v Simon Carr | 7-5,6-7,4-6 |
| ITF Great Britain F2 | 2017/02/05 14:30 | Florian Fallert v Jannis Kahlke | 2-6,6-2,5-7 |
| ITF Great Britain F2 | 2017/02/05 10:00 | Jannis Kahlke v Nicholas Bybel | 6-3,6-4 |
| ITF Germany F3 | 2017/01/23 14:30 | Lukas Ruepke v Jannis Kahlke | 6-2,7-5 |