Stadium: Court 3 Round: 25 Ground: Clay
| ITF Germany F6 | 2018/07/03 08:30 | Robert Strombachs v Moritz Pfaff | 3-6,6-2,6-1 |
| ITF Germany F5 | 2018/06/27 10:00 | Christopher Heyman v Robert Strombachs | 6-0,6-3 |
| ITF Germany F4 | 2018/06/22 08:00 | George Von Massow v Robert Strombachs | 6-2,6-3 |
| ITF Germany F4 | 2018/06/19 09:00 | Robert Strombachs v Daniil Klimov | 6-3,6-4 |
| ITF Germany F4 | 2018/06/18 11:00 | Leon Hoeveler v Robert Strombachs | 1-6,2-6 |
| ITF Germany F4 | 2018/06/17 12:00 | Fabian Penzkofer v Robert Strombachs | 2-6,1-6 |
| ITF Czech Republic F3 Qual | 2018/05/27 09:00 | Mateusz Terczynski v Robert Strombachs | 6-4,6-0 |
| ITF Czech Republic F1 | 2018/05/18 09:00 | Sebastian Fanselow v Robert Strombachs | 6-1,6-3 |
| Challenger Heilbronn Qual | 2018/05/13 09:00 | Christoph Negritu v Igor Sijsling | 4-6,0-6 |
| Challenger Heilbronn Qual | 2018/05/12 09:00 | Dmitry Surchenko v Christoph Negritu | 5-7,1-6 |
| ITF Tunisia F15 | 2018/04/17 11:10 | Christoph Negritu v Samm Butler | 3-6,3-6 |
| ITF Tunisia F14 | 2018/04/13 09:00 | Christoph Negritu v Baptiste Crepatte | 2-6,3-6 |
| ITF Tunisia F14 | 2018/04/12 09:00 | Christoph Negritu v Quentin Robert | 5-7,6-3,6-2 |
| ITF Tunisia F14 | 2018/04/10 09:00 | Michal Konecny v Christoph Negritu | 4-6,4-6 |
| ITF Tunisia F13 | 2018/04/07 09:00 | David Perez Sanz v Christoph Negritu | 6-4,6-2 |
| ITF Tunisia F13 | 2018/04/06 10:50 | Christoph Negritu v Clement Tabur | 7-6,6-3 |