Stadium: Cancha Raul Viver Round: 24 Ground: Clay
| ITF Brazil F3 | 2018/05/11 18:25 | Pedro Sakamoto v Oscar Jose Gutierrez | 5-7,6-4,3-6 |
| ITF Brazil F2 | 2018/05/05 00:25 | Oscar Jose Gutierrez v Pedro Sakamoto | 6-3,2-6,6-3 |
| Challenger Campinas Qual | 2017/10/01 14:30 | Pedro Sakamoto v Oscar Jose Gutierrez | 6-4,6-2 |
| Challenger Lima | 2019/10/22 16:30 | Pedro Sakamoto v Mario Vilella Martinez | 6-4,3-6,6-7 |
| Challenger Lima | 2019/10/21 20:40 | Jose Hernandez-Fernandez v Pedro Sakamoto | 5-7,7-6,0-6 |
| Challenger Santo Domingo | 2019/10/07 20:50 | Joao Menezes v Pedro Sakamoto | 6-2,7-6 |
| Challenger Campinas | 2019/10/03 16:05 | Pedro Sakamoto v Nicolas Alvarez | 1-6,2-6 |
| Challenger Campinas | 2019/09/30 16:25 | Pedro Sakamoto v Pol Toledo Bague | 6-4,6-0 |
| Challenger Buenos Aires | 2019/09/24 15:30 | Sumit Nagal v Pedro Sakamoto | 6-7,6-4,6-3 |
| Challenger Buenos Aires | 2019/09/23 13:30 | Sebastian Baez v Pedro Sakamoto | 7-6,2-6,6-7 |
| Challenger Seville | 2019/09/12 20:20 | Pedro Sakamoto v Alejandro Davidovich Fokina | 3-6,2-6 |
| Challenger Lima | 2019/10/23 00:55 | Oscar Jose Gutierrez v Yannick Hanfmann | 3-6,3-6 |
| Challenger Lima | 2019/10/22 01:25 | Nicolas Alvarez v Oscar Jose Gutierrez | 3-6,3-6 |
| Challenger Santo Domingo | 2019/10/10 19:00 | Thiago Monteiro v Oscar Jose Gutierrez | 6-3,7-5 |
| Challenger Santo Domingo | 2019/10/08 22:55 | Oscar Jose Gutierrez v Pedja Krstin | 7-5,6-4 |
| Challenger Campinas | 2019/09/30 18:05 | Oscar Jose Gutierrez v Juan Pablo Varillas | 2-6,2-6 |
| Challenger Buenos Aires | 2019/09/23 15:10 | Genaro Alberto Olivieri v Oscar Jose Gutierrez | 6-4,6-4 |
| Challenger Biella | 2019/09/18 08:00 | Tommy Robredo v Oscar Jose Gutierrez | 6-0,6-1 |
| Challenger Biella | 2019/09/17 08:00 | Gianluigi Quinzi v Oscar Jose Gutierrez | 2-6,6-1,3-6 |