Stadium: Court 1 Round: 62 Ground: Clay
| ITF Brazil F6 | 2018/10/21 15:30 | Mateo Barreiros Reyes v Christian Oliveira | 6-7,5-7 |
| ITF M25 Mendoza | 2023/10/01 12:00 | Mateo Barreiros Reyes v Santiago Russo | 6-2,6-2 |
| ITF M25 Lujan | 2023/09/29 17:05 | Mateo Barreiros Reyes v Alvaro G Meza | 4-6,6-4,4-6 |
| ITF M25 Lujan | 2023/09/28 14:35 | Lorenzo Joaquin Rodriguez v Mateo Barreiros Reyes | 2-6,6-2,5-7 |
| ITF M25 Lujan | 2023/09/26 15:10 | Mateo Barreiros Reyes v Felipe De Dios | 6-1,6-2 |
| ITF M15 Punta del Este | 2023/09/22 14:00 | Franco Roncadelli v Mateo Barreiros Reyes | 6-2,6-4 |
| ITF M15 Punta del Este | 2023/09/21 12:55 | Ezequiel Simonit v Mateo Barreiros Reyes | 5-7,2-6 |
| ITF M15 Punta del Este | 2023/09/19 15:00 | Rafael Tosetto v Mateo Barreiros Reyes | 7-5,6-1 |
| Challenger Santa Cruz | 2023/09/10 17:10 | Mateo Barreiros Reyes v Victor Lilov | 5-7,7-6,3-6 |
| ITF M15 Sao Paulo | 2023/08/21 16:30 | Juan Estevez v Christian Oliveira | 3-6,7-6,10-8 |
| ITF M15 Monastir | 2023/07/03 12:30 | Kalman Boyd v Christian Oliveira | 6-1,6-1 |
| ITF M15 Monastir | 2023/07/03 08:30 | Youssef Boubaker v Christian Oliveira | 2-6,2-6 |
| ITF M15 Monastir | 2023/06/25 08:30 | Giulio Perego v Christian Oliveira | 6-1,7-6 |
| ITF M15 Monastir | 2023/06/19 08:30 | Linghao Zhang v Christian Oliveira | 7-5,4-6,10-4 |
| ITF M15 Monastir | 2023/06/18 08:30 | Omar Knani v Christian Oliveira | 3-6,4-6 |
| ITF M15 Monastir | 2023/06/11 08:30 | Christian Oliveira v Oscar Lacides | 5-7,0-6 |
| UTR Pro Florida | 2023/02/03 21:32 | Christian Oliveira v Daniel Cohen | 1-4 |