Stadium: Campo Centrale Round: 25 Ground: Clay
| Challenger Pullach | 2018/08/07 16:35 | Mats Moraing v Guilherme Clezar | 6-2,3-6,6-3 |
| Challenger Liberec | 2018/07/30 10:30 | Goncalo Oliveira v Guilherme Clezar | 7-6,6-2 |
| Challenger Prague | 2018/07/27 11:00 | Aleksandr Nedovyesov v Guilherme Clezar | 6-4,7-6 |
| Challenger Prague | 2018/07/26 12:35 | Guilherme Clezar v Tim Van Rijthoven | 6-3,6-7,6-4 |
| Challenger Prague | 2018/07/25 10:40 | Guilherme Clezar v Daniel Brands | 6-3,6-1 |
| Wimbledon Qual | 2018/06/25 11:15 | Thomas Fabbiano v Guilherme Clezar | 6-2,6-3 |
| Challenger L'Aquila | 2018/06/23 13:00 | Facundo Bagnis v Guilherme Clezar | 6-3,5-7,7-6 |
| Challenger L'Aquila | 2018/06/22 13:00 | Guilherme Clezar v Gianluigi Quinzi | 6-3,1-6,7-6 |
| ITF Italy F22 | 2018/08/06 16:25 | Hernan Casanova v Riccardo Balzerani | 6-3,0-6,6-2 |
| ITF Italy F21 | 2018/08/02 13:00 | Tobias Simon v Riccardo Balzerani | 6-2,7-6 |
| ITF Italy F21 | 2018/08/01 11:50 | Riccardo Balzerani v Daniel Dutra Da Silva | 6-7,6-2,7-5 |
| ITF Italy F21 | 2018/07/31 13:15 | Riccardo Balzerani v Tommaso Roggero | 6-3,4-6,6-2 |
| ITF Italy F20 | 2018/07/28 18:45 | Riccardo Balzerani v Jose Pereira | 4-6,6-4,6-3 |
| ITF Italy F20 | 2018/07/27 20:05 | Daniel Dutra Da Silva v Riccardo Balzerani | 1-6,6-7 |
| ITF Italy F20 | 2018/07/25 09:30 | Riccardo Balzerani v Alexis Musialek | 6-3,6-1 |
| ITF Italy F20 | 2018/07/23 12:00 | Tomas Martin Etcheverry v Riccardo Balzerani | 4-6,6-1,1-6 |