Round: 25 Ground: Carpet indoor
| Challenger - Koblenz | 2017/01/22 13:00 | Bemelmans, Ruben v Langer, Nils | 6-4,3-6,7-6 |
| Challenger - Koblenz | 2017/01/21 15:00 | Langer, Nils v Daniel Masur | 6-1,6-3 |
| Challenger - Koblenz | 2017/01/20 18:50 | Brands, Daniel v Langer, Nils | 6-7,2-6 |
| Challenger - Koblenz | 2017/01/19 10:00 | Langer, Nils v Alessandro Giannessi | 6-2,6-0 |
| Challenger - Koblenz | 2017/01/18 14:15 | Reuter, Yannik v Langer, Nils | 1-6,3-6 |
| Challenger Koblenz Qual | 2017/01/16 15:50 | Ungur, Adrian v Langer, Nils | 4-6,0-6 |
| Challenger Koblenz Qual | 2017/01/16 09:00 | Langer, Nils v Edan Leshem | 7-5,6-4 |
| Challenger Koblenz Qual | 2017/01/15 08:00 | Langer, Nils v Loukas, Raphael | 6-1,6-1 |
| ITF Czech Republic F10 | 2016/11/21 09:30 | Kern, Robin v Chadaj, Adam | 4-6,0-6 |
| ITF Germany F17 | 2016/11/04 15:05 | Reuter, Yannik v Kern, Robin | 6-4,6-1 |
| ITF Germany F17 | 2016/11/03 15:45 | Gerritsen, Stephan v Kern, Robin | 4-6,2-6 |
| ITF Germany F15 | 2016/10/19 16:20 | Wagner, Hannes v Kern, Robin | 4-6,6-7 |
| ITF Germany F14 | 2016/10/16 12:00 | Kern, Robin v Moraing, Mats | 4-6,2-6 |
| ITF Germany F14 | 2016/10/15 11:00 | Louis Wessels v Kern, Robin | 3-6,2-6 |
| ITF Germany F14 | 2016/10/14 11:00 | Antoine Escoffier v Kern, Robin | 2-6,3-6 |
| ITF Germany F14 | 2016/10/13 12:55 | Rudolf Molleker v Kern, Robin | 4-6,2-6 |