Round: 44 Ground: Clay
| ITF Brazil F7 | 2018/10/30 18:15 | Facundo Mena v Osni Junior | 6-1,6-2 |
| ITF Brazil F7 | 2018/10/29 12:00 | Osni Junior v Paulo A S Dos Santos | 6-3,7-6 |
| ITF Brazil F7 | 2018/10/27 12:00 | Osni Junior v Gabriel De Andrade Bendazoli | 7-5,6-0 |
| ITF Brazil F5 | 2018/10/18 17:25 | Osni Junior v Christian Lindell | 2-6,4-6 |
| ITF Germany F11 | 2018/08/06 11:00 | Osni Junior v Lucas Poullain | 6-4,4-6,6-7 |
| ITF Germany F11 | 2018/08/05 12:00 | Osni Junior v Marc Guardeno | 6-2,6-4 |
| ITF Germany F11 | 2018/08/05 10:00 | Adriano Quinti v Osni Junior | 3-6,0-6 |
| ITF Germany F10 | 2018/08/02 13:10 | Manuel Guinard v Osni Junior | 6-3,6-0 |
| ITF Brazil F8 | 2018/11/03 14:00 | Lourenco Gasperini v Rai Vicente de Araujo | 3-6,2-6 |
| ITF Brazil F7 | 2018/10/27 12:00 | Rai Vicente de Araujo v Gustavo Heide | 4-6,4-6 |
| ITF Brazil F6 | 2018/10/22 14:45 | Pedro Gabriel Rodrigues v Rai Vicente de Araujo | 7-6,6-0 |
| ITF Brazil F6 | 2018/10/20 13:00 | Bernardo A P E Oliveira v Rai Vicente de Araujo | 7-6,3-6,4-6 |
| ITF Brazil F5 | 2018/10/16 13:00 | Ignacio Monzon v Rai Vicente de Araujo | 7-6,6-3 |
| ITF Brazil F5 | 2018/10/14 13:00 | Rai Vicente de Araujo v Eber Tiepermann | 6-0,6-0 |
| ITF Brazil F2 | 2018/04/29 15:00 | Pedro Sakamoto v Rai Vicente de Araujo | 6-2,6-2 |
| ITF Brazil F2 | 2018/04/28 15:00 | Kevin Borges Pereira v Rai Vicente de Araujo | 1-6,2-6 |