Stadium: M Round: 26 Ground: Carpet indoor
| ITF Germany F3 | 2018/01/30 15:35 | Kern, Robin v Elmar Ejupovic | 6-2,7-6 |
| ITF Germany F2 | 2018/01/27 17:10 | Kern, Robin v Doumbia, Sadio | 4-6,1-6 |
| ITF Germany F2 | 2018/01/26 18:30 | Kern, Robin v Boehler, Dominik | 7-5,6-4 |
| ITF Germany F2 | 2018/01/25 14:45 | Juan Pablo Ficovich v Kern, Robin | 4-6,7-6,6-7 |
| ITF Germany F2 | 2018/01/24 11:30 | Benjamin Hassan v Kern, Robin | 6-7,4-6 |
| ITF Germany F1 | 2018/01/11 15:00 | Kern, Robin v Simon, Tobias | 6-3,6-7,6-7 |
| Challenger Andria | 2017/11/21 19:00 | Andrea Pellegrino v Kern, Robin | 6-4,6-4 |
| ITF Finland F4 | 2017/11/16 13:00 | Mohamed Safwat v Kern, Robin | 7-5,4-6,6-4 |
| ITF Germany F3 | 2018/01/30 12:30 | Guenther, Valentin v Karlo Cubelic | 6-7,6-4,6-4 |
| ITF Germany F16 | 2017/10/23 10:00 | Dzhanashia, Shalva v Guenther, Valentin | 6-4,7-5 |
| ITF Germany F16 | 2017/10/22 08:00 | Seibert, Tim v Guenther, Valentin | 6-4,3-6,4-6 |
| ITF Germany F15 | 2017/10/15 12:00 | Guenther, Valentin v Boulais, Justin | 6-3,6-1 |
| ITF Germany F14 | 2017/10/10 10:00 | Elmar Ejupovic v Guenther, Valentin | 6-4,6-7,6-3 |
| ITF Germany F14 | 2017/10/09 10:00 | Dzhanashia, Shalva v Guenther, Valentin | 5-7,3-6 |
| ITF Germany F14 | 2017/10/08 11:30 | Robert Strombachs v Guenther, Valentin | 6-2,3-6,4-6 |
| ITF Italy F30 | 2017/09/18 14:30 | Guenther, Valentin v Maxime Chazal | 1-6,1-6 |