Round: 28 Ground: Hardcourt outdoor
| ITF Turkey F17 | 2016/05/01 11:00 | Marc Sieber v Christopher Heyman | 6-3,6-0 |
| ITF Turkey F6 | 2017/02/17 07:30 | Christopher Heyman v Nicolae Frunza | 6-4,0-6,6-0 |
| ITF Turkey F6 | 2017/02/15 09:25 | Christopher Heyman v Anil Yuksel | 6-1,1-6,6-4 |
| ITF Turkey F6 | 2017/02/13 08:00 | Christopher Heyman v Francesco Vilardo | 6-2,7-5 |
| ITF Turkey F5 | 2017/02/07 07:00 | Lukas Ollert v Christopher Heyman | 6-4,1-6,6-3 |
| ITF France F3 | 2017/01/26 13:30 | Mick Lescure v Christopher Heyman | 6-7,6-2,6-4 |
| ITF France F3 | 2017/01/24 12:00 | Christoph Negritu v Christopher Heyman | 1-6,0-6 |
| Challenger Koblenz Qual | 2017/01/16 14:30 | Christopher Heyman v Roman Safiullin | 5-7,7-6,4-6 |
| Challenger Koblenz Qual | 2017/01/15 20:10 | Maxime Authom v Christopher Heyman | 4-6,3-6 |
| 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 Turkey F3 | 2017/01/27 08:00 | Cem Ilkel v Marc Sieber | 7-6,6-4 |
| ITF Turkey F3 | 2017/01/26 07:30 | Matej Vocel v Marc Sieber | 4-6,0-6 |
| ITF Turkey F3 | 2017/01/23 09:00 | Emmanuel Luria v Marc Sieber | 0-6,0-6 |
| ITF Turkey F2 | 2017/01/21 08:20 | Liam Broady v Marc Sieber | 2-6,6-4,6-1 |