Stadium: Court 3 Oberhaching Round: 25 Ground: Carpet indoor
| ITF Italy F26 | 2018/09/01 08:30 | Aichhorn, Jakob v Nystroem, Patrick | 2-6,4-6 |
| ITF Germany F13 | 2018/08/22 13:00 | Aichhorn, Jakob v Torebko, Peter | 0-6,2-6 |
| ITF Germany F13 | 2018/08/20 13:00 | Schulte, Rene v Aichhorn, Jakob | 6-4,6-2 |
| ITF Germany F13 | 2018/08/19 08:00 | Kurz, Benedict v Aichhorn, Jakob | 6-2,4-6,1-6 |
| ITF Germany F12 | 2018/08/16 15:30 | Aichhorn, Jakob v Boehler, Dominik | 2-6,3-6 |
| ITF Germany F12 | 2018/08/15 13:10 | Aichhorn, Jakob v Statham, Mikal | 6-2,6-0 |
| ITF Germany F12 | 2018/08/13 13:00 | Statham, Mikal v Aichhorn, Jakob | 1-6,6-3,3-6 |
| ITF Germany F12 | 2018/08/12 15:15 | Schneider, Theo v Aichhorn, Jakob | 2-6,4-6 |
| 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 |
| ITF Netherlands F2 Qual | 2018/07/02 11:45 | Guenther, Valentin v Erdbories, Tillmann | 6-7,6-1,2-6 |