Estadio: Court 11 Round: 27 Ground: Clay
| Challenger Buenos Aires | 2018/11/11 20:15 | Pedro Sakamoto v Gonzalo Villanueva | 5-7,6-4,2-6 |
| ITF M25 Lima | 2020/02/13 14:30 | Pedro Sakamoto v Camilo Ugo Carabelli | 6-3,7-6 |
| ITF M25 Lima | 2020/02/11 15:00 | Pedro Sakamoto v Manuel Pena Lopez | 6-2,6-1 |
| ITF M25 Lima | 2020/02/08 15:00 | Tomas Barrios Vera v Pedro Sakamoto | 6-2,6-2 |
| ITF M25 Lima | 2020/02/07 17:35 | Manuel Pena Lopez v Pedro Sakamoto | 3-6,6-4,2-6 |
| ITF M25 Lima | 2020/02/06 16:45 | Federico Zeballos v Pedro Sakamoto | 5-7,4-6 |
| ITF M25 Lima | 2020/02/05 19:50 | Santiago Rodriguez Taverna v Pedro Sakamoto | 1-6,4-6 |
| Challenger de Punta del Este | 2020/01/28 15:30 | Pedro Sakamoto v Joao Domingues | 7-6,6-2 |
| Challenger de Punta del Este | 2020/01/27 16:25 | Pedro Sakamoto v Emiliano Troche | 6-2,6-0 |
| ITF M25 Lima | 2020/02/11 17:00 | Gonzalo Bueno v Gonzalo Villanueva | 2-6,1-6 |
| ITF M25 Lima | 2020/02/05 14:30 | Tomas Barrios Vera v Gonzalo Villanueva | 6-3,6-3 |
| Challenger de Punta del Este | 2020/01/29 22:00 | Marco Cecchinato v Gonzalo Villanueva | 6-0,6-3 |
| Challenger de Punta del Este | 2020/01/28 00:10 | Gonzalo Villanueva v Juan Martin Fumeaux | 6-2,6-0 |
| ITF M25 Naples | 2019/11/19 19:00 | Gonzalo Villanueva v Roberto Cid Subervi | 6-4,0-6,3-6 |
| Challenger de Houston | 2019/11/14 00:35 | Gonzalo Villanueva v Jenson Brooksby | 2-6,2-6 |
| Challenger de Houston | 2019/11/12 22:25 | Rafael Matos v Gonzalo Villanueva | 6-7,4-6 |
| Challenger de Montevideo | 2019/11/04 19:20 | Gonzalo Villanueva v Rafael Matos | 6-4,0-6,2-6 |