Stadium: Center Court Round: 25 Ground: Clay
| ITF Brazil F4 | 2017/11/27 11:00 | Lucas Bernardo v Gabriel P Tumasonis | 6-7,2-6 |
| ITF Brazil F4 | 2017/11/26 13:00 | Leonardo Reami Da Cunha v Gabriel P Tumasonis | 3-6,1-6 |
| ITF Brazil F3 | 2017/11/20 14:00 | Gabriel P Tumasonis v Alexandre Tsuchiya | 1-6,4-6 |
| ITF Brazil F2 | 2017/11/14 17:40 | Igor Marcondes v Gabriel P Tumasonis | 6-3,6-4 |
| ITF Brazil F2 | 2017/11/12 13:00 | Gabriel P Tumasonis v Rafael Tosetto | 6-2,6-4 |
| ITF Argentina F7 | 2017/09/11 13:00 | Carlos E. Severino v Gabriel P Tumasonis | 6-4,3-6,6-2 |
| ITF Argentina F7 | 2017/09/09 17:30 | Fernando Sierra v Gabriel P Tumasonis | 4-6,7-5,3-6 |
| ITF Argentina F6 | 2017/09/02 14:30 | Gabriel P Tumasonis v Rodrigo Arus | 2-6,2-6 |
| ITF Brazil F2 | 2017/11/18 19:55 | Rafael Matos v Nicolas Santos | 1-6,6-3,6-3 |
| ITF Brazil F2 | 2017/11/17 21:50 | Nicolas Santos v Jose Pereira | 6-3,6-4 |
| ITF Brazil F2 | 2017/11/15 22:35 | Nicolas Santos v Felipe Meligeni Rodrigues Alves | 6-1,5-7,6-3 |
| ITF Brazil F2 | 2017/11/14 12:00 | Nicolas Santos v Thales Turini | 6-2,6-1 |
| ITF Tunisia F32 | 2017/10/25 13:50 | Nicolas Santos v Alexandre Muller | 6-2,3-6,1-6 |
| ITF Nigeria F5 | 2017/10/16 09:00 | Tom Jomby v Nicolas Santos | 7-6,6-7,6-4 |
| ITF Nigeria F4 | 2017/10/11 09:00 | Ilija Vucic v Nicolas Santos | 6-4,6-0 |
| ITF Nigeria F4 | 2017/10/10 10:00 | Lance-Pierre Du Toit v Nicolas Santos | 5-7,2-6 |