Stadium: C Round: 27 Ground: Clay
| ITF Germany F7 | 2018/07/12 15:00 | Jonas Merckx v Jakub Paul | 6-3,7-6 |
| ITF Germany F7 | 2018/07/11 11:45 | Jonas Merckx v Lucas Gerch | 6-4,3-6,6-3 |
| ITF Belgium F3 | 2018/07/05 13:30 | Georgii Kravchenko v Jonas Merckx | 1-6,3-6 |
| ITF Belgium F3 | 2018/07/03 11:05 | George Tsivadze v Jonas Merckx | 7-5,3-6,3-6 |
| ITF Belgium F2 | 2018/06/26 10:15 | Germain Gigounon v Jonas Merckx | 6-3,6-1 |
| ITF Belgium F1 | 2018/06/22 11:00 | Yann Marti v Jonas Merckx | 5-7,7-6,6-0 |
| ITF Belgium F1 | 2018/06/21 15:05 | Alexis Gautier v Jonas Merckx | 4-6,3-6 |
| ITF Belgium F1 | 2018/06/19 09:55 | Louis Herman v Jonas Merckx | 3-6,0-6 |
| ITF Germany F7 | 2018/07/12 10:00 | Alexis Klegou v Mirko Martinez | 3-6,6-3,7-6 |
| ITF Germany F7 | 2018/07/10 11:35 | Alexis Klegou v Kai Lemstra | 6-7,6-4,6-3 |
| Davis Cup | 2018/06/23 09:05 | Alexis Klegou v Ismael C R Mzai | 7-6,6-4 |
| Davis Cup | 2018/06/22 08:40 | Alexis Klegou v Christian Paul | 6-2,6-1 |
| Davis Cup | 2018/06/21 08:40 | Alexis Klegou v Ernest Habiyambere | 6-2,6-2 |
| Davis Cup | 2018/06/19 08:25 | Alexis Klegou v Blaise Nkwenti | 6-3,7-6 |
| ITF Spain F14 | 2018/06/05 09:30 | Samuel Bensoussan v Alexis Klegou | 6-3,6-1 |
| ITF Spain F14 Qual | 2018/06/03 08:30 | Alexis Klegou v Juan P Canas Garcia | 6-2,6-4 |