Stadium: Centre Court Round: 25 Ground: Clay
| Challenger Meerbusch | 2017/08/17 11:00 | Sieber, Marc v Karim-Mohamed Maamoun | 2-6,3-6 |
| 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 Germany F12 | 2017/08/21 08:00 | Kunz, Giordan v Link, Joel Vincent | 0-6,1-6 |
| ITF Germany F11 | 2017/08/14 09:00 | Lang, Robin v Link, Joel Vincent | 7-6,6-0 |
| ITF Germany F11 | 2017/08/13 08:00 | Ramazan Nureev v Link, Joel Vincent | 4-6,7-6,4-6 |
| ITF Germany F10 | 2017/08/06 08:00 | Link, Joel Vincent v Florian Broska | 1-6,6-4,4-6 |
| ITF Germany F5 | 2017/06/26 10:00 | Link, Joel Vincent v Solanki, Alex | 1-6,4-6 |
| ITF Germany F4 | 2017/06/17 10:30 | Link, Joel Vincent v Guenther, Valentin | 1-6,4-6 |
| ITF Tunisia F23 | 2017/06/10 09:00 | Grassi Mazzuchi, Juan Pablo v Link, Joel Vincent | 6-4,6-2 |
| Tunisia F22, Singles Qualifying | 2017/06/03 12:30 | Link, Joel Vincent v Guerrero, Jeff | 6-4,0-6,6-7 |