Stadium: Court M Round: 28 Ground: Clay
| Germany F8, Singles | 2018/07/20 13:00 | Felipe Meligeni Rodrigues Alves v Souza, Joao Olavo | 4-6,4-6 |
| Germany F8, Singles | 2018/07/19 11:35 | Vilaro, Alejo v Souza, Joao Olavo | 6-4,1-6,4-6 |
| Germany F8, Singles | 2018/07/18 11:00 | Vega Hernandez, David v Souza, Joao Olavo | 3-6,5-7 |
| ITF Germany F8 Qual | 2018/07/16 09:30 | Souza, Joao Olavo v Hoeveler, Leon | 6-1,6-0 |
| ITF Germany F8 Qual | 2018/07/15 12:00 | Souza, Joao Olavo v Erdbories, Tillmann | 4-6,6-1,7-5 |
| Challenger Braunschweig Qual | 2018/07/07 12:05 | Souza, Joao Olavo v Netuschil, Marvin | 2-6,6-2,3-6 |
| Challenger Milan Qual | 2018/06/24 13:10 | Samper-Montana, Jordi v Souza, Joao Olavo | 6-0,6-3 |
| Challenger Milan Qual | 2018/06/23 13:35 | Pasquale De Giorgio v Souza, Joao Olavo | 4-6,2-6 |
| Germany F8, Singles | 2018/07/20 11:00 | Pena Lopez, Manuel v Heyman, Christopher | 6-4,6-2 |
| Germany F8, Singles | 2018/07/19 09:30 | Elmar Ejupovic v Pena Lopez, Manuel | 3-6,2-6 |
| Germany F8, Singles | 2018/07/18 10:50 | Vadym Ursu v Pena Lopez, Manuel | 1-6,5-7 |
| ITF Austria F1 | 2018/07/05 09:05 | Pena Lopez, Manuel v Santanna, B. | 2-6,1-6 |
| ITF Austria F1 | 2018/07/04 10:00 | Pena Lopez, Manuel v Schmidt, Gabriel | 6-4,6-3 |
| ITF Austria F1 | 2018/07/03 08:00 | Pena Lopez, Manuel v Manda, Calin | 6-4,6-4 |
| ITF Tunisia F25 | 2018/06/29 08:30 | Johan Nikles v Pena Lopez, Manuel | 3-6,6-1,6-3 |
| ITF Tunisia F25 | 2018/06/28 11:05 | Bencic, Brian v Pena Lopez, Manuel | 0-6,0-6 |