Stadium: Court 3 Round: 26 Ground: Clay
| ITF M15 Brasilia | 2021/11/02 16:50 | Wilson Leite v Vitor Mansur | 6-0,6-3 |
| ITF M25 Rio do Sul | 2021/10/23 17:55 | Gustavo Heide v Wilson Leite | 2-6,6-1,7-6 |
| ITF M25 Rio do Sul | 2021/10/22 14:25 | Wilson Leite v Ignacio Carou | 6-2,6-0 |
| ITF M25 Rio do Sul | 2021/10/21 17:10 | Wilson Leite v Matheus A De Lima | 6-3,6-1 |
| ITF M25 Rio do Sul | 2021/10/20 14:50 | Wilson Leite v Thomas Kano | 6-0,6-1 |
| ITF M25 Lima | 2021/10/12 15:00 | Wilson Leite v Oriol Roca Batalla | 4-6,0-6 |
| ITF M25 Lima | 2021/10/09 15:00 | Esteve Lobato, Eduard v Wilson Leite | 6-7,6-1,6-0 |
| ITF M25 Lima | 2021/10/08 16:30 | Pol Martin Tiffon v Wilson Leite | 3-6,6-1,3-6 |
| ITF M15 Brasilia | 2021/11/02 15:00 | Iago Almeida v Oliveira, Cristian | 2-6,4-6 |
| ITF M25 Rio do Sul | 2021/10/19 13:55 | Franco Roncadelli v Oliveira, Cristian | 6-1,6-1 |
| ITF M15 Recife | 2021/09/22 13:00 | Oliveira, Cristian v Oscar Jose Gutierrez | 3-6,0-6 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/16 14:00 | Conner Huertas Del Pino v Oliveira, Cristian | 6-3,6-3 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/15 16:45 | Oliveira, Cristian v Erhardt, Gaston | 7-6,6-3 |
| ITF M25 Rio de Janeiro | 2019/10/11 15:35 | Oliveira, Cristian v Felipe Meligeni Rodrigues Alves | 2-6,4-6 |
| ITF M25 Rio de Janeiro | 2019/10/08 17:30 | Oliveira, Cristian v Echazu, Mauricio | 6-1,4-6,6-3 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/15 12:00 | Berne, Mateo v Oliveira, Cristian | 6-4,6-1 |