Stadium: Court M Round: 62 Ground: Clay
| 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 |
| Challenger Guadalajara | 2018/04/17 20:15 | Joao Souza v Gonzalo Escobar | 6-2,3-6,5-7 |
| ITF Germany F8 Qual | 2018/07/15 08:00 | Dominik Langmajer v Tillmann Erdbories | 4-6,1-6 |
| Challenger Braunschweig Qual | 2018/07/07 11:30 | Tillmann Erdbories v Jordi Samper-Montana | 2-6,0-6 |
| Challenger Braunschweig Qual | 2018/07/07 07:30 | Peter Goldsteiner v Tillmann Erdbories | 1-6,4-6 |
| ITF Netherlands F2 | 2018/07/04 08:00 | Tillmann Erdbories v Stephan Gerritsen | 7-5,5-7,4-6 |
| 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 | Nick Broekhof v Tillmann Erdbories | 6-4,3-6,1-6 |
| ITF Germany F4 | 2018/06/19 09:00 | Sekou Bangoura v Tillmann Erdbories | 7-6,6-4 |
| ITF Tunisia F21 | 2018/05/26 10:00 | Jeremy Sonkin v Tillmann Erdbories | 7-5,2-6,6-3 |