Stadium: Quadra 4 Round: 14 Ground: Clay
| ITF M15 - Brasilia | 2021/11/04 13:00 | Eduardo Ribeiro v Gabriel P Tumasonis | 6-2,6-1 |
| ITF Brazil F2 | 2018/04/28 15:00 | Gabriel P Tumasonis v Eduardo Ribeiro | 6-3,5-7,3-6 |
| ITF M25 - Rio de Janeiro | 2022/10/19 17:30 | Pedro Rodrigues v Gabriel P Tumasonis | 6-4,6-2 |
| Challenger - Campinas | 2022/10/02 14:30 | Carlos Sanchez Jover v Gabriel P Tumasonis | 6-1,6-1 |
| ITF M15 - Cancun | 2022/09/28 14:00 | Gabriel P Tumasonis v Andrew Rogers | 3-6,4-6 |
| ITF M15 - Cancun | 2022/09/20 15:00 | Gabriel P Tumasonis v Joao M Nusdeo | 6-3,1-6,4-6 |
| ITF M15 - Cancun | 2022/09/13 20:10 | Gabriel P Tumasonis v Mwendwa Mbithi | 6-7,2-6 |
| ITF M15 - Cancun | 2022/09/08 14:00 | Victor Lilov v Gabriel P Tumasonis | 6-4,6-3 |
| ITF M15 - Cancun | 2022/09/07 15:40 | Gabriel P Tumasonis v Kousuke Ogura | 6-2,6-3 |
| ITF M15 - Brasilia | 2022/08/25 13:00 | Fernando Yamacita v Gabriel P Tumasonis | 6-2,7-6 |
| Challenger - Montevideo | 2022/11/08 17:10 | Eduardo Ribeiro v Gastao Elias | 7-5,0-6,2-6 |
| Challenger - Montevideo | 2022/11/07 16:00 | Nicolas Alvarez v Eduardo Ribeiro | 4-6,4-6 |
| Challenger - Montevideo | 2022/11/06 16:50 | Eduardo Ribeiro v Wilson Leite | 6-4,6-2 |
| Challenger - Guayaquil | 2022/11/02 20:40 | Juan Pablo Varillas v Eduardo Ribeiro | 6-2,6-1 |
| Challenger - Guayaquil | 2022/11/01 15:00 | Nicolas Alvarez v Eduardo Ribeiro | 4-6,6-7 |
| Challenger - Guayaquil | 2022/10/31 17:40 | Roberto P Palma v Eduardo Ribeiro | 0-6,2-6 |
| Challenger - Rio de Janeiro | 2022/10/10 13:00 | Juan Pablo Paz v Eduardo Ribeiro | 6-4,6-2 |
| Challenger - Rio de Janeiro | 2022/10/09 15:05 | Eduardo Ribeiro v Jose Fco. Vidal Azorin | 6-2,3-6,6-2 |