Stadium: Center Court Round: 28 Ground: Clay
| ITF Italy F21 | 2018/08/02 18:40 | Sorgi, Joao Pedro v Souza, Joao Olavo | 4-6,5-7 |
| ITF Italy F21 | 2018/08/01 08:00 | Giovanni Fonio v Souza, Joao Olavo | 6-7,7-6,3-6 |
| ITF Italy F21 | 2018/07/31 12:15 | Genaro Alberto Olivieri v Souza, Joao Olavo | 6-7,1-6 |
| Challenger Tampere | 2018/07/24 10:00 | Kimmer Coppejans v Souza, Joao Olavo | 6-3,6-4 |
| Germany F8, Singles | 2018/07/22 11:00 | Orlando Luz v Souza, Joao Olavo | 6-4,4-6,6-3 |
| Germany F8, Singles | 2018/07/21 11:00 | Souza, Joao Olavo v Pena Lopez, Manuel | 3-6,6-3,7-6 |
| 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 |
| ITF Italy F21 | 2018/08/02 13:00 | Simon, Tobias v Balzerani, Riccardo | 6-2,7-6 |
| ITF Italy F21 | 2018/08/01 15:20 | Simon, Tobias v Luca Tomasetto | 7-6,6-3 |
| ITF Italy F21 | 2018/07/31 18:00 | Simon, Tobias v Rieder, Horst | 6-2,6-4 |
| ITF Portugal F12 | 2018/07/27 11:30 | Nuno Borges v Simon, Tobias | 6-7,6-2,6-4 |
| ITF Portugal F12 | 2018/07/26 15:00 | Carr, Simon v Simon, Tobias | 4-6,3-6 |
| ITF Portugal F12 | 2018/07/25 14:50 | Daniel Batista v Simon, Tobias | 4-6,3-6 |
| Challenger - Nottingham | 2018/06/12 14:30 | Ward, James v Simon, Tobias | 6-4,6-7,7-6 |
| Challenger Nottingham Qual | 2018/06/11 10:00 | Christopher Eubanks v Simon, Tobias | 3-6,7-6,6-7 |