Stadium: Court 4 Round: 62 Ground: Clay
| ITF Germany F8 Qual | 2018/07/15 12:00 | Joao Souza v Tillmann Erdbories | 4-6,6-1,7-5 |
| Challenger Braunschweig Qual | 2018/07/07 12:05 | Joao Souza v Marvin Netuschil | 2-6,6-2,3-6 |
| Challenger Milan Qual | 2018/06/24 13:10 | Jordi Samper-Montana v Joao Souza | 6-0,6-3 |
| Challenger Milan Qual | 2018/06/23 13:35 | Pasquale De Giorgio v Joao Souza | 4-6,2-6 |
| Challenger L'Aquila Qual | 2018/06/17 08:00 | Joao Souza v Riccardo Bonadio | 7-5,6-7,3-6 |
| Challenger Caltanissetta Qual | 2018/06/11 10:15 | Joao Souza v Marc Sieber | 6-2,3-6,4-6 |
| Challenger Caltanissetta Qual | 2018/06/10 12:10 | Joao Souza v Claudio Fortuna | 7-6,6-2 |
| Challenger Caltanissetta Qual | 2018/06/09 12:05 | Joao Souza v Fausto Tabacco | 6-2,6-2 |
| ITF Germany F8 Qual | 2018/07/15 12:00 | Mislav Bosnjak v Leon Hoeveler | 3-6,6-1,2-6 |
| ITF Germany F8 Qual | 2018/07/15 08:00 | Gabriel Sanchez v Leon Hoeveler | 3-6,7-6,1-6 |
| ITF Germany F7 | 2018/07/09 11:00 | Gregorio Cordonnier v Leon Hoeveler | 6-2,2-6,6-0 |
| ITF Germany F6 | 2018/07/02 09:00 | Leon Hoeveler v Tim Heger | 2-6,2-6 |
| ITF Germany F5 | 2018/06/25 13:00 | Joao Pedro Sorgi v Leon Hoeveler | 6-1,6-0 |
| ITF Germany F5 | 2018/06/25 08:00 | Michelangelo Endrizzi v Leon Hoeveler | 4-6,3-6 |
| ITF Germany F5 | 2018/06/24 10:00 | Danut Cuc v Leon Hoeveler | 3-6,2-6 |
| ITF Germany F4 | 2018/06/19 14:35 | Valentin Guenther v Leon Hoeveler | 6-3,6-2 |