Stadium: WSG Grandstand Round: 46 Ground: Clay
| 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 Turkey F24 | 2017/06/25 08:00 | Marc Sieber v Dimitar Kuzmanov | 3-6,6-2,1-6 |
| ITF Turkey F24 | 2017/06/24 07:00 | Marc Sieber v Nicolo Turchetti | 6-3,6-3 |
| ITF Turkey F24 | 2017/06/23 07:00 | Marc Sieber v Muhammet Haylaz | 6-0,6-3 |
| ITF Turkey F24 | 2017/06/22 07:00 | Marc Sieber v Gabriel Donev | 6-2,6-1 |
| ITF Turkey F24 | 2017/06/20 07:00 | Marc Sieber v Jannis Kahlke | 6-4,6-1 |
| ITF Turkey F23 | 2017/06/17 07:00 | Hugo Dellien v Marc Sieber | 6-3,6-1 |
| Challenger Meerbusch Qual | 2017/08/12 14:35 | Alexandar Lazarov v Erik Crepaldi | 6-3,6-4 |
| ITF Romania F8 | 2017/08/04 07:45 | Alexandar Lazarov v Dragos Dima | 6-1,3-6,6-3 |
| ITF Romania F8 | 2017/08/03 11:00 | Alexandar Lazarov v Vasile Antonescu | 6-3,6-3 |
| ITF Romania F8 | 2017/08/01 08:50 | Alexandar Lazarov v Gabi Adrian Boitan | 6-1,6-2 |
| ITF Romania F7 | 2017/07/28 11:25 | Hernan Casanova v Alexandar Lazarov | 3-6,6-2,6-0 |
| ITF Romania F7 | 2017/07/27 07:00 | Alexandar Lazarov v Teodor-Dacian Craciun | 6-2,6-1 |
| ITF Romania F7 | 2017/07/26 12:40 | Alexandar Lazarov v Bogdan Pavel | 6-4,6-3 |
| ITF Romania F7 | 2017/07/25 10:10 | Alexandar Lazarov v Aaron Addison | 6-4,6-3 |