Stadium: Center Court Round: 28 Ground: Clay
| ITF Italy F21 | 2018/08/02 18:40 | Joao Pedro Sorgi v Joao Souza | 4-6,5-7 |
| ITF Italy F21 | 2018/08/01 08:00 | Giovanni Fonio v Joao Souza | 6-7,7-6,3-6 |
| ITF Italy F21 | 2018/07/31 12:15 | Genaro Alberto Olivieri v Joao Souza | 6-7,1-6 |
| Challenger - Tampere | 2018/07/24 10:00 | Kimmer Coppejans v Joao Souza | 6-3,6-4 |
| ITF Germany F8 | 2018/07/22 11:00 | Orlando Luz v Joao Souza | 6-4,4-6,6-3 |
| ITF Germany F8 | 2018/07/21 11:00 | Joao Souza v Manuel Pena Lopez | 3-6,6-3,7-6 |
| ITF Germany F8 | 2018/07/20 13:00 | Felipe Meligeni Rodrigues Alves v Joao Souza | 4-6,4-6 |
| ITF Germany F8 | 2018/07/19 11:35 | Alejo Vilaro v Joao Souza | 6-4,1-6,4-6 |
| ITF Italy F21 | 2018/08/02 13:00 | Tobias Simon v Riccardo Balzerani | 6-2,7-6 |
| ITF Italy F21 | 2018/08/01 15:20 | Tobias Simon v Luca Tomasetto | 7-6,6-3 |
| ITF Italy F21 | 2018/07/31 18:00 | Tobias Simon v Horst Rieder | 6-2,6-4 |
| ITF Portugal F12 | 2018/07/27 11:30 | Nuno Borges v Tobias Simon | 6-7,6-2,6-4 |
| ITF Portugal F12 | 2018/07/26 15:00 | Simon Carr v Tobias Simon | 4-6,3-6 |
| ITF Portugal F12 | 2018/07/25 14:50 | Daniel Batista v Tobias Simon | 4-6,3-6 |
| Challenger - Nottingham | 2018/06/12 14:30 | James Ward v Tobias Simon | 6-4,6-7,7-6 |
| Challenger - Nottingham - Kvalifikation | 2018/06/11 10:00 | Christopher Eubanks v Tobias Simon | 3-6,7-6,6-7 |