Stadium: Court 2 Round: 25 Ground: Clay
| 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 |
| Challenger L'Aquila | 2018/06/20 10:05 | Martin Cuevas v Guilherme Clezar | 3-6,6-1,2-6 |
| Challenger L'Aquila | 2018/06/19 10:50 | Riccardo Bonadio v Guilherme Clezar | 4-6,5-7 |
| Challenger Almaty | 2018/06/14 05:00 | Guilherme Clezar v Yannick Hanfmann | 3-6,2-6 |
| Challenger Almaty | 2018/06/13 07:55 | Nikola Milojevic v Guilherme Clezar | 2-6,6-3,1-6 |
| Challenger Almaty | 2018/06/12 05:20 | Goncalo Oliveira v Guilherme Clezar | 6-3,3-6,1-6 |
| Challenger Astana | 2018/07/22 08:15 | Daniel Brands v Sebastian Ofner | 6-7,3-6 |
| Challenger Astana | 2018/07/21 11:40 | Daniel Brands v Jurij Rodionov | 6-4,3-6,7-5 |
| Challenger Astana | 2018/07/20 10:50 | Saketh Myneni v Daniel Brands | 4-6,7-6,5-7 |
| Challenger Astana | 2018/07/18 09:10 | Ivan Gakhov v Daniel Brands | 7-6,3-6,3-6 |
| Challenger Astana | 2018/07/16 10:45 | Daniel Brands v Cem Ilkel | 6-0,6-4 |
| Challenger Recanati | 2018/07/08 19:00 | Daniel Brands v Adrian Menendez-Maceiras | 7-5,6-3 |
| Challenger Recanati | 2018/07/07 17:45 | Daniel Brands v Roberto Quiroz | 6-0,6-3 |
| Challenger Recanati | 2018/07/06 15:50 | Daniel Brands v Salvatore Caruso | 6-4,7-6 |