Round: 44 Ground: Clay
| Challenger Mexico City Qual | 2018/04/07 16:00 | Pedro Sakamoto v Andrea Basso | 6-4,6-7,3-6 |
| Challenger Panama City | 2018/04/03 17:20 | Pedro Sakamoto v Andrea Basso | 2-6,2-6 |
| Challenger San Luis Potosi | 2018/03/31 19:00 | Roberto Cid Subervi v Pedro Sakamoto | 6-3,6-3 |
| Challenger San Luis Potosi | 2018/03/30 20:15 | Jay Clarke v Pedro Sakamoto | 3-6,6-7 |
| Challenger San Luis Potosi | 2018/03/29 18:00 | Pedro Sakamoto v Pedja Krstin | 4-6,6-3,7-5 |
| Challenger San Luis Potosi | 2018/03/27 23:20 | Federico Coria v Pedro Sakamoto | 3-6,4-6 |
| Challenger San Luis Potosi Qual | 2018/03/26 19:35 | Pedro Sakamoto v Gonzalo Lama | 6-4,7-6 |
| Challenger San Luis Potosi Qual | 2018/03/26 00:25 | Pedro Sakamoto v Emilio Gomez | 6-2,6-2 |
| ITF Brazil F2 | 2018/04/28 15:00 | Kevin Borges Pereira v Rai Vicente de Araujo | 1-6,2-6 |
| ITF Brazil F1 | 2018/04/22 13:00 | Fernando Yamacita v Rai Vicente de Araujo | 5-7,6-2,6-1 |
| ITF Brazil F1 | 2018/04/21 13:00 | Enrico dos Santos Lima v Rai Vicente de Araujo | 5-7,3-6 |