Stadium: B & B Court Round: 26 Ground: Clay
| Challenger Meerbusch | 2017/08/15 17:00 | Brown, Dustin v Sieber, Marc | 2-6,2-6 |
| Meerbusch, Allemagne, Qualifications | 2017/08/14 09:30 | Sieber, Marc v Gimeno-Traver, Daniel | 7-5,6-3 |
| Meerbusch, Allemagne, Qualifications | 2017/08/13 12:55 | Sieber, Marc v Alexandar Lazarov | 6-3,6-2 |
| Challenger Marburg Qual | 2017/07/02 10:20 | Sieber, Marc v Bachinger, Matthias | 2-6,7-6,3-6 |
| Challenger Marburg Qual | 2017/07/01 10:00 | Sieber, Marc v Naow, Amer | 6-1,6-2 |
| ITF Turkey F24 | 2017/06/25 08:00 | Sieber, Marc v Dimitar Kuzmanov | 3-6,6-2,1-6 |
| ITF Turkey F24 | 2017/06/24 07:00 | Sieber, Marc v Turchetti, Nicolo | 6-3,6-3 |
| ITF Turkey F24 | 2017/06/23 07:00 | Sieber, Marc v Haylaz, Muhammet | 6-0,6-3 |
| Challenger Meerbusch | 2017/08/15 15:15 | Karim-Mohamed Maamoun v Mertens, Yannick | 6-3,6-2 |
| Segovia, Spain | 2017/08/03 14:30 | Alex De Minaur v Karim-Mohamed Maamoun | 6-2,7-6 |
| Segovia, Spain | 2017/08/01 11:55 | Vega Hernandez, David v Karim-Mohamed Maamoun | 2-6,1-6 |
| Coupe Davis | 2017/07/22 14:00 | Karim-Mohamed Maamoun v Hounkpevi, Felix | 6-0,6-1 |
| Coupe Davis | 2017/07/21 14:00 | Chinamo, Tadiwa v Karim-Mohamed Maamoun | 0-6,1-6 |
| Coupe Davis | 2017/07/19 14:00 | Karim-Mohamed Maamoun v Etienne Niyigena | 6-0,6-0 |
| Coupe Davis | 2017/07/17 15:35 | Karim-Mohamed Maamoun v Sylvester Emmanuel | 6-0,6-3 |
| ITF France F14 | 2017/07/07 09:30 | Tatlot, Johan Sebastien v Karim-Mohamed Maamoun | 6-2,6-2 |