Stadion: Quadra Central Round: 26 Ground: Clay
| ITF - Brasilien F2 | 2018/05/02 15:00 | Carlos E. Severino v Nicolas Santos | 7-6,6-3 |
| ITF - Brasilien F7 | 2018/10/29 16:05 | Oscar Jose Gutierrez v Carlos E. Severino | 6-2,3-6,4-6 |
| ITF - Brasilien F6 | 2018/10/25 17:00 | Maximiliano Estevez v Carlos E. Severino | 6-4,6-3 |
| ITF - Brasilien F6 | 2018/10/23 20:55 | Federico Moreno v Carlos E. Severino | 4-6,6-4,4-6 |
| ITF - Brasilien F5 | 2018/10/18 13:00 | Oscar Jose Gutierrez v Carlos E. Severino | 6-3,6-1 |
| ITF - Brasilien F5 | 2018/10/16 13:00 | Felipe Garla v Carlos E. Severino | 4-6,3-6 |
| Challenger - Campinas - Qualifikation | 2018/09/30 17:35 | Joao Pedro Sorgi v Carlos E. Severino | 6-4,6-2 |
| Challenger - Binghamton - Qualifikation | 2018/07/21 13:00 | Antoine Escoffier v Carlos E. Severino | 6-2,6-4 |
| ITF - Brasilien F4 | 2018/05/16 15:30 | Daniel Dutra Da Silva v Carlos E. Severino | 6-4,6-1 |
| ITF - Brasilien F7 | 2018/10/30 13:00 | Nicolas Santos v Damien Wenger | 6-1,6-0 |
| ITF - Brasilien F6 | 2018/10/25 18:50 | Felipe Meligeni Rodrigues Alves v Nicolas Santos | 7-6,6-4 |
| ITF - Brasilien F6 | 2018/10/23 15:20 | Igor Gimenez v Nicolas Santos | 4-6,1-6 |
| ITF - Brasilien F5 | 2018/10/18 15:35 | Nicolas Santos v Francisco Cerundolo | 4-6,1-6 |
| ITF - Brasilien F5 | 2018/10/16 16:45 | Nicolas Santos v Joao Pedro Okano | 6-1,6-1 |
| ITF - Peru F3 | 2018/10/12 19:55 | Diego Hidalgo v Nicolas Santos | 6-3,6-3 |
| ITF - Peru F3 | 2018/10/11 16:55 | Nicolas Santos v Duilio Beretta | 6-2,3-6,6-3 |
| ITF - Peru F3 | 2018/10/09 15:00 | Nicolas Santos v Alexander Merino | 6-1,6-2 |