Round: 45 Ground: Clay
| ITF Brazil F9 | 2018/11/16 13:00 | Alex Blumenberg v Carlos E. Severino | 6-4,6-4 |
| ITF Brazil F9 | 2018/11/14 18:30 | Carlos E. Severino v Daniil Zarichanskiy | 6-0,6-0 |
| ITF Brazil F9 | 2018/11/13 12:00 | Carlos E. Severino v Pedro Gabriel Rodrigues | 6-2,6-2 |
| ITF Brazil F8 | 2018/11/09 15:30 | Nicolas Santos v Carlos E. Severino | 6-2,2-6,6-3 |
| ITF Brazil F8 | 2018/11/08 22:05 | Mateus Alves v Carlos E. Severino | 7-6,6-7,2-6 |
| ITF Brazil F8 | 2018/11/06 13:00 | Carlos E. Severino v Daniel Dutra Da Silva | 7-5,3-6,7-5 |
| ITF Brazil F7 | 2018/10/31 14:00 | Carlos E. Severino v Nicolas Santos | 2-6,3-6 |
| ITF Brazil F7 | 2018/10/29 16:05 | Oscar Jose Gutierrez v Carlos E. Severino | 6-2,3-6,4-6 |
| ITF Brazil F9 | 2018/11/11 14:00 | Gustavo Teisen Pereira v Leonardo Reami Da Cunha | 7-6,1-6,1-6 |
| ITF Brazil F7 | 2018/10/27 12:00 | Natan Rodrigues v Gustavo Teisen Pereira | 6-2,6-0 |
| ITF USA F25 | 2018/09/14 16:00 | Gustavo Teisen Pereira v Rishabh Sharda | 0-6,6-4,4-6 |
| ATP Sao Paulo Qual | 2017/02/25 16:40 | Nicolas Kicker v Gustavo Teisen Pereira | 6-0,6-0 |