Stadium: Court 1 Round: 45 Ground: Hardcourt indoor
| ITF France F21 | 2017/09/29 10:00 | Robin Kern v Julian Lenz | 7-6,6-3 |
| Challenger Florence | 2018/09/29 08:00 | Julian Lenz v Joao Menezes | 4-6,4-6 |
| Challenger Sibiu | 2018/09/17 09:30 | Jelle Sels v Julian Lenz | 7-6,2-6,6-3 |
| Challenger Sibiu | 2018/09/16 10:35 | Johannes Haerteis v Julian Lenz | 4-6,4-6 |
| Challenger Sibiu | 2018/09/15 09:40 | George Iulian Dina v Julian Lenz | 1-6,2-6 |
| Challenger Szczecin | 2018/09/10 09:00 | Julian Lenz v Jan Satral | 2-6,3-6 |
| Challenger Szczecin | 2018/09/09 11:10 | Gonzalo Lama v Julian Lenz | 4-6,6-7 |
| Challenger Szczecin Qual | 2018/09/08 15:00 | Fernando Romboli v Julian Lenz | 1-6,1-6 |
| ITF Germany F13 | 2018/08/23 13:15 | Julian Lenz v Christoph Negritu | 6-7,0-6 |
| Challenger Orleans | 2018/09/22 15:15 | Hugo Grenier v Robin Kern | 6-1,6-1 |
| ITF Italy F25 | 2018/08/30 12:30 | Sami Reinwein v Robin Kern | 7-6,6-4 |
| ITF Italy F25 | 2018/08/29 12:00 | Gabriele Maria Noce v Robin Kern | 3-6,3-6 |
| ITF Italy F25 | 2018/08/28 17:00 | Pasquale De Giorgio v Robin Kern | 4-6,3-6 |
| ITF Portugal F16 | 2018/08/22 09:00 | Nicolas Alvarez Varona v Robin Kern | 6-2,6-2 |
| ITF Germany F12 | 2018/08/16 13:10 | Aleksandre Metreveli v Robin Kern | 7-5,7-5 |
| ITF Germany F12 | 2018/08/14 15:00 | Moritz Hoffmann v Robin Kern | 2-6,3-6 |
| Challenger Blois Qual | 2018/06/16 12:15 | David Vega Hernandez v Robin Kern | 3-6,6-1,6-4 |