Stadium: Cancha 3 Round: 19 Ground: Hardcourt outdoor
| Challenger Salinas 2 | 2021/04/26 18:00 | Nicolas Alvarez v Yusuke Takahashi | 7-6,6-0 |
| Challenger Salinas | 2021/04/19 17:55 | Nicolas Alvarez v Nicolas Jarry | 1-6,1-6 |
| Challenger Santiago | 2021/03/18 16:00 | Nicolas Jarry v Nicolas Alvarez | 6-3,6-4 |
| Challenger Santiago | 2021/03/16 15:15 | Nicolas Alvarez v Pedro Sakamoto | 3-6,6-4,6-3 |
| ATP Santiago | 2021/03/06 13:00 | Alejandro Tabilo v Nicolas Alvarez | 6-4,6-3 |
| ATP Buenos Aires | 2021/02/27 20:05 | Jaume Munar v Nicolas Alvarez | 6-4,6-7,6-2 |
| ATP Cordoba | 2021/02/20 14:40 | Tomas Barrios Vera v Nicolas Alvarez | 6-1,6-2 |
| Challenger Concepcion | 2021/02/15 14:00 | Emilio Gomez v Nicolas Alvarez | 6-4,1-6,6-0 |
| Challenger Salinas 2 | 2021/04/26 19:40 | Tak Khunn Wang v Alejandro Gonzalez | 6-2,3-6,6-2 |
| Challenger Salinas | 2021/04/21 17:00 | Camilo Ugo Carabelli v Tak Khunn Wang | 6-1,6-1 |
| Challenger Salinas | 2021/04/20 14:30 | Marek Gengel v Tak Khunn Wang | 2-6,3-6 |
| Challenger Salinas | 2021/04/19 14:30 | Alejandro Gonzalez v Tak Khunn Wang | 2-6,6-1,0-6 |
| Challenger Salinas | 2021/04/18 15:00 | Tak Khunn Wang v David Poljak | 6-3,6-3 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Tak Khunn Wang v Peter Heller | 1-6,3-6 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Tak Khunn Wang v Marvin Moeller | 6-4,6-3 |
| Challenger Split | 2021/04/04 10:30 | Akira Santillan v Tak Khunn Wang | 4-6,6-1,7-6 |