Round: 54 Ground: Clay
| ITF Brazil F9 | 2018/11/12 22:00 | Paulo A S Dos Santos v Andre Miele | 0-6,2-6 |
| ITF Brazil F8 | 2018/11/04 15:30 | Laelson Rodrigues v Paulo A S Dos Santos | 2-6,6-1,6-3 |
| ITF Brazil F7 | 2018/10/29 12:00 | Osni Junior v Paulo A S Dos Santos | 6-3,7-6 |
| ITF Brazil F7 | 2018/10/28 15:00 | Lucas Bernardo v Paulo A S Dos Santos | 4-6,6-7 |
| ITF Brazil F6 | 2018/10/23 17:00 | Francisco Comesana v Paulo A S Dos Santos | 6-0,6-1 |
| ITF Brazil F6 | 2018/10/21 15:30 | Paulo A S Dos Santos v Victor Bertoldo | 6-1,6-2 |
| ITF Brazil F5 | 2018/10/16 18:15 | Luis Britto v Paulo A S Dos Santos | 6-4,6-3 |
| ITF Bolivia F3 | 2018/09/24 14:30 | Lorenzo Gagliardo v Paulo A S Dos Santos | 7-5,3-6,6-4 |
| ITF Chile F2 | 2018/11/19 16:30 | Cristobal Castro v Jorge Montero | 4-6,2-6 |