Stadium: SEG 2 Round: 44 Ground: Carpet indoor
| ITF Germany F1 | 2018/01/07 15:00 | Antoine Walch v Stefan Seifert | 4-6,1-6 |
| ITF Germany F1 | 2018/01/07 08:00 | Albert Sprlak Puk v Stefan Seifert | 2-6,3-6 |
| ITF Germany F7 | 2014/07/10 09:30 | Alexey Vatutin v Stefan Seifert | 6-3,6-7,6-3 |
| ITF Germany F7 | 2014/07/08 09:30 | Stefan Seifert v Dimitar Kuzmanov | 7-6,4-6,6-3 |
| ITF Germany F16 | 2017/10/22 08:00 | Pelle Boerma v Robin Lang | 5-7,1-6 |
| ITF Germany F16 | 2017/10/22 08:00 | Robin Lang v Mick Veldheer | 2-6,3-6 |
| ITF Germany F15 | 2017/10/16 08:00 | Alexander Kuerschner v Robin Lang | 6-3,6-3 |
| ITF Germany F14 | 2017/10/08 11:30 | Robin Lang v Jonas Trinker | 6-7,5-7 |
| ITF Germany F14 | 2017/10/08 07:00 | Fabian Penzkofer v Robin Lang | 5-7,3-6 |
| ITF Tunisia F29 | 2017/10/02 11:30 | Goran Markovic v Robin Lang | 7-5,6-3 |
| ITF Tunisia F29 | 2017/10/01 11:30 | Marco Corino v Robin Lang | 4-6,2-6 |
| ITF Germany F12 | 2017/08/24 14:10 | Robin Lang v Louis Wessels | 5-7,1-6 |