Stadium: Court 15 Round: 44 Ground: Hardcourt outdoor
| Challenger Pullach | 2018/08/07 13:45 | Ricardo Ojeda Lara v Martin Klizan | 3-6,2-6 |
| Challenger Padova | 2018/07/24 08:30 | Enrico Dalla Valle v Ricardo Ojeda Lara | 6-7,6-1,6-3 |
| Challenger San Benedetto | 2018/07/16 17:20 | Lorenzo Giustino v Ricardo Ojeda Lara | 6-3,6-0 |
| Challenger Perugia | 2018/07/11 13:00 | Ricardo Ojeda Lara v Gianluigi Quinzi | 4-6,5-7 |
| Challenger Marburg | 2018/07/03 10:00 | Elliot Benchetrit v Ricardo Ojeda Lara | 6-4,6-4 |
| Wimbledon Qual | 2018/06/25 14:05 | Bradley Klahn v Ricardo Ojeda Lara | 6-3,6-2 |
| French Open Qual | 2018/05/21 12:50 | Facundo Bagnis v Ricardo Ojeda Lara | 7-5,6-1 |
| Challenger Lisbon | 2018/05/14 16:00 | Tommy Robredo v Ricardo Ojeda Lara | 6-2,6-2 |
| Challenger Cordenons | 2018/08/18 15:00 | Mate Valkusz v Guilherme Clezar | 6-2,6-4 |
| Challenger Cordenons | 2018/08/17 12:30 | Guilherme Clezar v Facundo Bagnis | 6-4,4-6,6-2 |
| Challenger Cordenons | 2018/08/15 13:10 | Guilherme Clezar v Pedro Cachin | 6-2,6-4 |
| Challenger Cordenons | 2018/08/13 17:00 | Guilherme Clezar v Riccardo Balzerani | 6-2,7-5 |
| 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 |