Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF Germany F14 | 2018/10/04 12:35 | Kai Lemstra v Paul Cayre | 6-4,3-6,4-6 |
| ITF Germany F14 | 2018/10/03 15:50 | Louis Wessels v Kai Lemstra | 6-7,6-1,4-6 |
| ITF Germany F13 | 2018/08/20 09:00 | Kai Lemstra v Jordi Walder | 3-6,6-1,3-6 |
| ITF Germany F12 | 2018/08/15 15:00 | Dan Added v Kai Lemstra | 7-5,6-2 |
| ITF Slovakia F2 | 2018/07/31 07:00 | Kai Lemstra v Samuel Hodor | 4-6,2-6 |
| ITF Slovakia F2 | 2018/07/30 07:00 | Kai Lemstra v Daniel Rabas | 6-1,6-1 |
| ITF Slovakia F2 | 2018/07/29 07:00 | Kai Lemstra v Filip Kucbel | 6-1,6-1 |
| ITF Germany F9 | 2018/07/24 14:45 | Kai Lemstra v Christoph Negritu | 2-6,4-6 |
| ITF Italy F29 | 2018/09/29 12:00 | Giovanni Fonio v Sandro Ehrat | 5-7,4-6 |
| ITF Italy F29 | 2018/09/28 12:00 | Mateo Nicolas Martinez v Sandro Ehrat | 1-6,2-6 |
| ITF Italy F29 | 2018/09/27 14:05 | Sandro Ehrat v Juan Pablo Varillas | 6-4,6-2 |
| ITF Italy F29 | 2018/09/26 16:50 | Marko Miladinovic v Sandro Ehrat | 1-6,6-4,3-6 |
| ITF Italy F29 | 2018/09/23 12:00 | Sandro Ehrat v Federico Arnaboldi | 6-3,4-6,6-3 |
| ITF Italy F29 | 2018/09/22 08:00 | Sandro Ehrat v Fabrizio Andaloro | 6-2,6-1 |
| Davis Cup | 2018/09/16 13:45 | Sandro Ehrat v Jonathan Mridha | 6-4,3-6,4-6,6-7 |
| ITF Switzerland F5 | 2018/09/08 11:55 | Louis Wessels v Sandro Ehrat | 6-3,6-4 |