Stadium: Court 2 Round: 44 Ground: Clay
| ITF Brazil F1 | 2016/06/25 13:00 | Gabriel P Tumasonis v Pedro Gabriel Rodrigues | 6-3,6-3 |
| ITF Brazil F2 | 2018/04/28 17:30 | Pedro Gabriel Rodrigues v Gustavo De O Cruz | 3-6,1-6 |
| ITF Portugal F8 | 2018/04/18 12:00 | Pedro Gabriel Rodrigues v Dan Dowson | 7-5,3-6,1-6 |
| ITF Portugal F7 Qual | 2018/04/09 14:25 | Pedro Gabriel Rodrigues v Eduard Guell Bartrina | 2-6,0-6 |
| ITF Portugal F7 Qual | 2018/04/08 19:00 | Jaume Pla Malfeito v Pedro Gabriel Rodrigues | 7-6,2-6,5-7 |
| ITF Portugal F6 Qual | 2018/03/24 13:00 | Joao Graca v Pedro Gabriel Rodrigues | 4-6,1-6 |
| ITF Portugal F5 Qual | 2018/03/19 11:00 | Miliaan Niesten v Pedro Gabriel Rodrigues | 6-1,6-4 |
| ITF Portugal F5 Qual | 2018/03/18 14:30 | Pedro Gabriel Rodrigues v Duarte Nuno Teixeira | 6-0,6-2 |
| ITF Portugal F5 Qual | 2018/03/18 11:30 | Pedro Gabriel Rodrigues v Jose Daniel Bendeck | 7-5,6-2 |
| ITF Brazil F2 | 2018/04/28 15:00 | Gabriel P Tumasonis v Eduardo Ribeiro | 6-3,5-7,3-6 |
| ITF Brazil F1 | 2018/04/22 13:00 | Tomas Martin Etcheverry v Gabriel P Tumasonis | 6-2,4-6,6-2 |
| ITF Brazil F4 | 2017/11/28 16:50 | Gabriel P Tumasonis v Nicolas Santos | 0-6,0-6 |
| 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 |