Stadium: Court 6 Round: 26 Ground: Clay
| ITF Germany F10 | 2018/08/01 11:00 | Jelle Sels v Schmitz, Constantin | 6-4,6-7,5-7 |
| ITF Germany F10 Qual | 2018/07/30 12:00 | Breitbach, Kai v Schmitz, Constantin | 2-6,3-6 |
| ITF Germany F10 Qual | 2018/07/29 13:30 | Muzzi, Felipe v Schmitz, Constantin | 0-6,0-6 |
| ITF Germany F9 | 2018/07/25 16:00 | Boehler, Dominik v Schmitz, Constantin | 6-1,6-3 |
| ITF Germany F9 | 2018/07/24 17:30 | Botezan, George v Schmitz, Constantin | 2-6,7-5,3-6 |
| ITF Germany F9 | 2018/07/23 10:00 | Seraphim, Christian v Schmitz, Constantin | 3-6,4-6 |
| ITF Germany F9 | 2018/07/22 08:00 | Schmitz, Constantin v Chaukulkar, Tejas | 6-3,6-1 |
| ITF USA F37 | 2017/11/14 16:00 | Schmitz, Constantin v Nuno Borges | 1-6,7-6,2-6 |
| ITF Germany F10 | 2018/07/31 10:00 | Vanneste, Jeroen v Dan Added | 7-6,6-3 |
| ITF Belgium F5 | 2018/07/28 12:30 | Zizou Bergs v Vanneste, Jeroen | 6-7,3-6 |
| ITF Belgium F5 | 2018/07/27 10:00 | Vanneste, Jeroen v Prevosto, Luca | 6-2,6-2 |
| ITF Belgium F5 | 2018/07/26 16:10 | Pauwels, Maxime v Vanneste, Jeroen | 0-6,2-6 |
| ITF Belgium F5 | 2018/07/25 16:25 | Dhoe, Benjamin v Vanneste, Jeroen | 7-5,1-6,1-6 |
| ITF Belgium F5 | 2018/07/24 14:00 | Gabriel Decamps v Vanneste, Jeroen | 4-6,1-6 |
| ITF France F14 | 2018/07/22 13:00 | Vanneste, Jeroen v Mora, Maxime | 3-6,6-2,6-4 |
| ITF France F14 | 2018/07/21 15:20 | Vanneste, Jeroen v Struvay, Eduardo | 6-4,6-4 |