Stadium: Court 1 Round: 25 Ground: Clay
| UTR Pro Tennis Series Rio de Janeiro | 2022/04/06 12:30 | Luis Felipe Miguel v Christian Oliveira | 6-1,6-0 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/04/05 17:10 | Jose Pereira v Christian Oliveira | 6-3,6-2 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/04/03 13:30 | Paulo A S Dos Santos v Christian Oliveira | 6-4,6-1 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/04/01 14:00 | Christian Lindell v Christian Oliveira | 3-6,3-5 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/03/31 14:00 | Carlos Eduardo Severino v Christian Oliveira | 6-1,7-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/03/29 13:30 | Pedro Cressoni v Christian Oliveira | 6-4,2-6,3-6 |
| UTR Pro Tennis Series Rio de Janeiro | 2022/03/28 13:30 | Christian Oliveira v Asdrubal Neto | 3-6,1-6 |
| ITF M25 Campos do Jordao | 2022/02/03 14:30 | Christian Oliveira v Lorenzo Esquici | 6-4,6-3 |
| ITF M25 Medellin | 2022/03/22 15:00 | Gabriel P Tumasonis v Blu Baker | 2-6,1-6 |
| ITF M25 Medellin | 2022/03/21 14:55 | Gabriel P Tumasonis v Gabriel Roveri Sidney | 7-6,4-6,10-5 |
| Challenger Santiago | 2022/03/06 14:35 | Matteo Martineau v Gabriel P Tumasonis | 2-6,6-4,6-3 |
| ITF M25 Campos do Jordao | 2022/02/05 12:00 | Fernando Yamacita v Gabriel P Tumasonis | 6-2,6-7,12-10 |
| ITF M25 Campos do Jordao | 2022/02/04 20:50 | Gabriel P Tumasonis v Wilson Leite | 3-6,7-6,10-7 |
| ITF M25 Campos do Jordao | 2022/02/03 17:35 | Gabriel P Tumasonis v Joao Hinsching | 6-3,7-6 |
| ITF M25 Campos do Jordao | 2022/02/01 19:05 | Gabriel P Tumasonis v Bruno Stefani Figlio | 6-4,6-2 |
| ITF M25 Campos do Jordao | 2022/01/31 14:00 | Gabriel P Tumasonis v Drew Van Orderlain | 7-6,6-3 |