Stadium: Clay 6 Round: 62 Ground: Hardcourt outdoor
| ITF Turkey F31 | 2018/10/06 07:00 | Louroi Martinez v Prehn, Noah | 6-1,6-1 |
| ITF Turkey F30 | 2018/09/30 07:00 | Prehn, Noah v Walder, Jim | 3-6,5-7 |
| ITF Spain F27 | 2018/09/10 08:30 | Feitt, Franco v Prehn, Noah | 4-6,6-1,6-0 |
| ITF Netherlands F3 | 2018/07/07 07:30 | Collins, Sean v Prehn, Noah | 6-2,6-4 |
| ITF Germany F4 | 2018/06/16 10:30 | Mayer, Patrick v Prehn, Noah | 6-1,6-1 |
| ITF Turkey F22 | 2018/06/02 07:30 | Cengiz Aksu v Prehn, Noah | 6-0,6-1 |
| ITF Poland F3 Qual | 2018/05/14 07:30 | Panfil, Grzegorz v Prehn, Noah | 6-0,6-0 |
| ITF Turkey F9 | 2018/03/03 07:00 | Prehn, Noah v Melnic, Vladislav | 1-6,6-3,3-6 |