Stadium: Quadra 6 Round: 62 Ground: Clay
| ITF Brazil F3 | 2018/05/05 12:30 | Rodrigues, Pedro Gabriel v Gabriel P Tumasonis | 6-7,5-7 |
| ITF Brazil F1 | 2016/06/25 13:00 | Gabriel P Tumasonis v Rodrigues, Pedro Gabriel | 6-3,6-3 |
| ITF Brazil F6 | 2018/10/23 16:10 | Jose Pereira v Rodrigues, Pedro Gabriel | 6-1,6-4 |
| ITF Brazil F6 | 2018/10/22 14:45 | Rodrigues, Pedro Gabriel v Araujo, Rai Vicente de | 7-6,6-0 |
| ITF Brazil F6 | 2018/10/21 13:00 | Rodrigues, Pedro Gabriel v Moura, Hugo | 6-3,6-2 |
| ITF Portugal F20 | 2018/10/10 11:00 | van Der Horst, Tim v Rodrigues, Pedro Gabriel | 6-3,7-6 |
| ITF Portugal F19 | 2018/10/02 10:30 | Rodrigues, Pedro Gabriel v Pedro Vives Marcos | 1-6,0-6 |
| ITF Portugal F18 | 2018/09/25 10:50 | Rodrigues, Pedro Gabriel v Desein, Niels | 2-6,2-6 |
| ITF Portugal F18 | 2018/09/24 11:50 | Rodrigues, Pedro Gabriel v Gandara, Bernardo | 6-2,6-3 |
| ITF Portugal F18 | 2018/09/23 09:00 | Rodrigues, Pedro Gabriel v Henderson, Russell | 6-2,7-5 |
| ITF Brazil F6 | 2018/10/20 15:30 | Gabriel P Tumasonis v Karl William Wurth Mac-Leay | 3-6,3-6 |
| ITF Brazil F5 | 2018/10/15 14:00 | Hinsching, Joao v Gabriel P Tumasonis | 6-0,6-2 |
| ITF Brazil F5 | 2018/10/14 13:00 | Segantini Bertoldo, Victor v Gabriel P Tumasonis | 1-6,0-6 |
| ITF Spain F29 | 2018/09/23 07:00 | Gabriel P Tumasonis v Max Alcala Gurri | 1-6,3-6 |
| ITF Spain F28 Qual | 2018/09/16 12:00 | Gabriel P Tumasonis v Barranco, Sergio | 4-6,6-4,6-7 |
| ITF Spain F28 Qual | 2018/09/15 14:00 | Gabriel P Tumasonis v Fernandez-Espinar, Carlos | 6-3,6-3 |
| ITF Spain F27 | 2018/09/09 08:45 | Ivan Marrero Curbelo v Gabriel P Tumasonis | 6-4,6-0 |
| ITF Spain F27 | 2018/09/08 10:30 | Gabriel P Tumasonis v Guerrero Melgar, Angel | 6-1,6-3 |