| UTR Pro Tennis Series Rio de Janeiro | 2022/08/02 15:00 | Breno F Marques v Gabriel Alejandro Hidalgo | 1-6,2-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/08/02 16:18 | Rafael Tosetto v Christian Oliveira | 6-4,5-2 |
| ITF M15 Cancun | 2022/07/19 14:00 | Christian Oliveira v Jean-Christian Morandais | 6-4,7-6 |
| ITF M15 Cancun | 2022/07/18 14:00 | Christian Oliveira v Rodrigo Reyna | 6-4,6-1 |
| ITF M15 Cancun | 2022/07/14 14:00 | Adam Walton v Christian Oliveira | 6-1,6-1 |
| ITF M15 Cancun | 2022/07/13 14:00 | Ivar Jose Aramburu Contreras v Christian Oliveira | 0-6,4-6 |
| ITF M15 Quito | 2022/06/15 20:10 | Juan Sebastian Gomez v Christian Oliveira | 6-1,6-3 |
| ITF M15 Quito | 2022/06/06 15:30 | Christian Oliveira v Ezequiel Simonit | 7-6,1-6,6-10 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/04/06 12:30 | Luis Felipe Miguel v Christian Oliveira | 6-1,6-0 |