Stadium: Court 1 Round: 25 Ground: Clay
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/13 17:00 | Oliveira, Cristian v Marcelo Zormann | 3-6,1-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/12 17:15 | Victor Milare Alves v Oliveira, Cristian | 5-7,4-5 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/12 14:15 | Stefani Figlia, B. v Oliveira, Cristian | 3-6,1-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/10 15:00 | Athell Bennett v Oliveira, Cristian | 4-6,1-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/05 16:36 | Oliveira, Cristian v Labuckas, Mateo | 1-6,2-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/04 15:00 | Oliveira, Cristian v Hidalgo, Gabriel Alejandro | 4-6,2-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/03 13:30 | Breno F Marques v Oliveira, Cristian | 1-6,4-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/02 16:18 | Rafael Tosetto v Oliveira, Cristian | 6-4,5-2 |
| ITF M15 Recife | 2022/08/17 19:45 | Nicolas Villalon v Gabriel P Tumasonis | 6-2,3-6,6-4 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/06 21:19 | Gabriel P Tumasonis v Labuckas, Mateo | 6-4,3-6,6-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/05 13:30 | Gabriel P Tumasonis v Gabriel Silva | 6-3,2-6,6-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/04 13:30 | Gabriel P Tumasonis v Pedro Sakamoto | 1-6,2-5 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/03 12:00 | Luis Britto v Gabriel P Tumasonis | 6-4,6-4 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/02 18:34 | Stefani Figlia, B. v Gabriel P Tumasonis | 2-6,4-6 |
| ITF M15 Cancun | 2022/07/19 14:00 | Matias Soto v Gabriel P Tumasonis | 6-3,6-1 |
| ITF M15 Cancun | 2022/07/14 16:25 | Gabriel P Tumasonis v Mwendwa Mbithi | 3-6,3-6 |