Stadium: Court 1 Oberhaching Round: 26 Ground: Carpet indoor
| ITF Germany F14 | 2018/10/03 10:00 | Christoph Negritu v Schmidt, Gabriel | 6-3,7-6 |
| ITF Tunisia F32 | 2018/09/23 09:30 | Voronin, Dimitriy v Christoph Negritu | 3-6,6-4,2-6 |
| ITF Tunisia F32 | 2018/09/22 09:00 | Christoph Negritu v Kai Wehnelt | 1-6,6-2,6-1 |
| ITF Tunisia F32 | 2018/09/21 12:30 | Klegou, Alexis v Christoph Negritu | 2-6,4-6 |
| ITF Tunisia F32 | 2018/09/20 08:30 | Alexandros Skorilas v Christoph Negritu | 2-6,0-6 |
| ITF Tunisia F32 | 2018/09/18 08:30 | Pontico, Hugo v Christoph Negritu | 4-6,2-6 |
| ITF Tunisia F31 | 2018/09/13 09:00 | Christoph Negritu v Borroni, Andrea | 3-6,6-7 |
| ITF Tunisia F31 | 2018/09/12 14:20 | Christoph Negritu v Preston Brown | 6-2,6-2 |
| ITF Germany F14 | 2018/10/03 11:35 | Aichhorn, Jakob v Guenther, Valentin | 3-6,2-6 |
| ITF Belgium F10 | 2018/08/28 08:00 | Guenther, Valentin v Mariano Kestelboim | 3-6,1-6 |
| ITF Germany F13 | 2018/08/21 08:00 | Kai Wehnelt v Guenther, Valentin | 7-5,6-1 |
| ITF Netherlands F3 | 2018/07/11 12:50 | Huertas Del Pino Cordova, Arklon v Guenther, Valentin | 3-6,6-3,7-5 |
| ITF Netherlands F3 | 2018/07/10 12:00 | Yanais Laurent v Guenther, Valentin | 3-6,3-6 |
| ITF Netherlands F3 | 2018/07/07 09:30 | Guenther, Valentin v Khlif, Noe | 4-6,6-2,6-4 |
| ITF Netherlands F3 | 2018/07/07 08:00 | Guenther, Valentin v Roland Stuurman | 3-6,6-2,6-2 |
| ITF Netherlands F2 | 2018/07/03 10:05 | Guenther, Valentin v Niklas-Salminen, Patrick | 4-6,3-6 |