Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2023/06/25 08:30 | Giulio Perego v Oliveira, Cristian | 6-1,7-6 |
| ITF - M15 Monastir | 2023/06/19 08:30 | Linghao Zhang v Oliveira, Cristian | 7-5,4-6,10-4 |
| ITF - M15 Monastir | 2023/06/18 08:30 | Omar Knani v Oliveira, Cristian | 3-6,4-6 |
| ITF - M15 Monastir | 2023/06/11 08:30 | Oliveira, Cristian v Oscar Lacides | 5-7,0-6 |
| UTR Pro Florida | 2023/02/03 21:32 | Oliveira, Cristian v Daniel Cohen | 1-4 |
| UTR Pro Florida | 2023/02/02 18:00 | Oliveira, Cristian v Jackson Caldwell | 0-0 |
| UTR Pro Florida | 2023/02/01 23:37 | Oliveira, Cristian v Isaiah Strode | 1-6,4-6 |
| UTR Pro Florida | 2023/01/31 20:00 | Oliveira, Cristian v Arthur Bonnaud | 1-6,2-5 |