Stadium: Court 1 Round: 25 Ground: Clay
| ITF Germany F4 | 2018/06/19 11:40 | Kai Wehnelt v Nico Matic | 4-6,0-6 |
| ITF Germany F4 | 2018/06/18 08:30 | Kai Wehnelt v Linus Krohn | 6-2,6-3 |
| ITF Germany F4 | 2018/06/17 12:00 | Kai Wehnelt v Jonathan Van Nieuwenhove | 6-2,6-3 |
| ITF Germany F4 | 2018/06/16 08:00 | Kai Wehnelt v Jason J Hildebrandt | 6-3,6-1 |
| ITF Czech Republic F2 | 2018/05/23 12:20 | Kai Wehnelt v Peter Heller | 1-6,3-6 |
| ITF Czech Republic F1 | 2018/05/17 08:00 | Kai Wehnelt v Michal Konecny | 7-6,6-7,6-7 |
| ITF Czech Republic F1 | 2018/05/16 08:00 | Bruno Santanna v Kai Wehnelt | 6-7,4-6 |
| ITF Czech Republic F1 | 2018/05/14 08:00 | Kai Wehnelt v Alex Solanki | 6-1,6-1 |
| ITF Netherlands F3 | 2018/07/11 12:50 | Arklon H D Pino v Valentin Guenther | 3-6,6-3,7-5 |
| ITF Netherlands F3 | 2018/07/10 12:00 | Yanais Laurent v Valentin Guenther | 3-6,3-6 |
| ITF Netherlands F3 | 2018/07/07 09:30 | Valentin Guenther v Noe Khlif | 4-6,6-2,6-4 |
| ITF Netherlands F3 | 2018/07/07 08:00 | Valentin Guenther v Roland Stuurman | 3-6,6-2,6-2 |
| ITF Netherlands F2 | 2018/07/03 10:05 | Valentin Guenther v Patrik Niklas-Salminen | 4-6,3-6 |
| ITF Netherlands F2 Qual | 2018/07/02 11:45 | Valentin Guenther v Tillmann Erdbories | 6-7,6-1,2-6 |
| ITF Netherlands F2 Qual | 2018/07/01 08:00 | Valentin Guenther v Thorsten Sollie | 7-6,6-7,6-4 |
| ITF Netherlands F1 Qual | 2018/06/24 09:00 | Valentin Guenther v Bobbie De Goeijen | 2-6,3-6 |