Stadium: Cancha 4 Round: 25 Ground: Clay
| Davis Cup | 2021/11/27 10:00 | Nicolae Frunza v Nicolas Alvarez | 6-2,6-4 |
| Challenger Campinas | 2021/11/19 19:00 | Sebastian Baez v Nicolas Alvarez | 6-4,6-3 |
| Challenger Campinas | 2021/11/16 13:00 | Nicolas Alvarez v Pedro Cachin | 4-6,6-4,6-2 |
| Challenger Campinas | 2021/11/15 15:25 | Joao Lucas Reis da Silva v Nicolas Alvarez | 6-2,3-6,3-6 |
| Challenger Campinas | 2021/11/14 14:00 | Luis Rodrigues Batista v Nicolas Alvarez | 1-6,0-6 |
| Challenger Montevideo | 2021/11/07 16:30 | Nicolas Alvarez v Tomas Lipovsek Puches | 2-6,2-6 |
| Challenger Guayaquil | 2021/11/04 15:00 | Nicolas Alvarez v Facundo Bagnis | 2-6,6-4,1-6 |
| Challenger Guayaquil | 2021/11/02 21:45 | Nicolas Alvarez v Thiago Agustin Tirante | 4-6,7-5,6-3 |
| Challenger Helsinki | 2021/11/14 13:15 | Kyrian Jacquet v Diego Hidalgo | 6-3,3-6,6-1 |
| Challenger Guayaquil | 2021/11/02 22:00 | Nicolas Alvarez Varona v Diego Hidalgo | 2-6,6-4,6-3 |
| Challenger Lima | 2021/10/24 21:10 | Jaroslav Pospisil v Diego Hidalgo | 4-6,6-3,6-3 |
| Challenger Santiago | 2021/10/12 14:00 | Dalibor Svrcina v Diego Hidalgo | 6-2,6-0 |
| Challenger Santiago | 2021/10/11 14:00 | Diego Hidalgo v Mathieu Perchicot | 2-6,6-3,6-4 |
| Challenger Santiago Qual | 2021/10/10 14:20 | Shintaro Mochizuki v Diego Hidalgo | 0-6,3-6 |
| Challenger Santiago | 2021/10/03 17:25 | Facundo Diaz Acosta v Diego Hidalgo | 6-3,7-6 |
| Challenger Ambato | 2021/09/22 15:00 | Diego Hidalgo v Facundo Mena | 4-6,3-6 |