Stadium: Court 1 Round: 27 Ground: Clay
| Challenger Campinas | 2018/09/30 13:00 | Nicolas Alvarez v Pedro Sakamoto | 6-3,7-6 |
| ITF M15 Naples | 2019/01/17 19:30 | Nicolas Alvarez v Luis Patino | 7-5,6-3 |
| ITF M15 Naples | 2019/01/16 17:30 | Nicolas Alvarez v Jesse Witten | 6-3,6-3 |
| ITF M25 Tucson | 2019/01/08 18:35 | Luis Patino v Nicolas Alvarez | 6-4,6-2 |
| Challenger Buenos Aires | 2018/11/11 17:00 | Bastian Malla v Nicolas Alvarez | 1-6,7-5,6-0 |
| Challenger Montevideo | 2018/11/03 14:30 | Nicolas Alvarez v Gonzalo Villanueva | 2-6,0-6 |
| Challenger Guayaquil | 2018/10/30 15:30 | Nicolas Alvarez v Pedro Sousa | 4-6,4-6 |
| Challenger Lima | 2018/10/23 20:35 | Emilio Gomez v Nicolas Alvarez | 6-4,6-4 |
| Challenger Santo Domingo | 2018/10/07 15:55 | Nicolas Alvarez v Juan Pablo Varillas | 6-4,2-6,1-6 |
| ITF M15 Naples | 2019/01/17 15:30 | Facundo Mena v Pedro Sakamoto | 6-7,6-0,3-6 |
| ITF M15 Naples | 2019/01/15 15:30 | Gonzalo Lama v Pedro Sakamoto | 4-6,1-6 |
| Challenger Buenos Aires | 2018/11/11 20:15 | Pedro Sakamoto v Gonzalo Villanueva | 5-7,6-4,2-6 |
| Challenger Buenos Aires | 2018/11/11 16:10 | Pedro Sakamoto v Tomas Farjat | 6-3,6-3 |
| Challenger Montevideo | 2018/11/03 13:00 | Pedro Sakamoto v Genaro Alberto Olivieri | 2-6,0-6 |
| Challenger Guayaquil Qual | 2018/10/27 16:00 | Pedro Sakamoto v Federico Zeballos | 6-1,6-7,2-6 |
| Challenger Lima | 2018/10/20 21:20 | Tomas Barrios Vera v Pedro Sakamoto | 6-4,6-3 |
| Challenger Campinas | 2018/09/30 13:00 | Nicolas Alvarez v Pedro Sakamoto | 6-3,7-6 |