Stadium: INDOOR 2 Round: 25 Ground: Clay
| UTR Pro - Rio de Janeiro | 2023/01/02 19:37 | Pedro Sakamoto v Christian Oliveira | 6-1,6-2 |
| Challenger - Campinas | 2023/10/03 13:00 | Pedro Sakamoto v Jose Pereira | 5-7,3-6 |
| Challenger - Campinas | 2023/10/02 13:00 | Blaise Bicknell v Pedro Sakamoto | 5-7,3-6 |
| Challenger - Antofagasta | 2023/09/19 19:40 | Pedro Sakamoto v Francisco Comesana | 6-0,5-7,4-6 |
| Challenger - Antofagasta | 2023/09/18 14:55 | Pedro Sakamoto v Victor Lilov | 6-1,6-4 |
| Challenger - Antofagasta | 2023/09/17 18:00 | Mateus Alves v Pedro Sakamoto | 6-7,4-6 |
| Challenger - Santa Cruz | 2023/09/15 18:30 | Juan Manuel Cerundolo v Pedro Sakamoto | 7-5,6-4 |
| Challenger - Santa Cruz | 2023/09/14 19:00 | Pedro Sakamoto v Joao Lucas Reis da Silva | 4-6,7-6,6-2 |
| Challenger - Santa Cruz | 2023/09/12 23:00 | Tristan Boyer v Pedro Sakamoto | 4-6,4-6 |
| ITF - M25 Lajeado | 2023/10/10 15:30 | Joao M Nusdeo v Christian Oliveira | 2-6,3-6 |
| ITF - M25 Lajeado | 2023/10/09 16:00 | Mateo Matulovich v Christian Oliveira | 2-6,2-6 |
| ITF - M25 Mendoza | 2023/10/02 13:00 | Mateo Barreiros Reyes v Christian Oliveira | 4-6,6-4,10-4 |
| 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 |