Stadion: Cancha Raul Viver Round: 14 Ground: Clay
| ITF - M25 - Pensacola | 2021/05/20 14:25 | Juan A H Serrano v Alejandro Gonzalez | 3-6,2-6 |
| ITF - M25 - Guayaquil | 2021/10/29 15:00 | Juan A H Serrano v Facundo Juarez | 3-6,4-6 |
| ITF - M25 - Guayaquil | 2021/10/28 18:35 | Juan A H Serrano v Gonzalo Achondo | 6-0,6-1 |
| ITF - M25 - Guayaquil | 2021/10/26 15:00 | Juan A H Serrano v Felipe Santamaria | 6-1,6-3 |
| Challenger - Bogota | 2021/10/17 18:10 | Luca Castelnuovo v Juan A H Serrano | 6-4,6-2 |
| ITF - M15 - Cancun | 2021/10/09 15:00 | Juan A H Serrano v Christian Langmo | 6-3,3-6,6-7 |
| ITF - M15 - Cancun | 2021/10/07 16:25 | Juan A H Serrano v Giles Hussey | 4-6,6-2,6-3 |
| ITF - M15 - Cancun | 2021/10/06 16:30 | Mwendwa Mbithi v Juan A H Serrano | 3-6,2-6 |
| ITF - M15 - Cancun | 2021/09/24 15:00 | Federico Agustin Gomez v Juan A H Serrano | 3-6,6-4,7-6 |
| Challenger - Bogota | 2021/10/20 15:00 | Matheus P De Almeida v Alejandro Gonzalez | 6-7,6-1,6-2 |
| Challenger - Bogota | 2021/10/18 19:10 | Alejandro Gonzalez v Vit Kopriva | 6-2,7-6 |
| Challenger - Lima | 2021/09/27 15:00 | Jorge Panta v Alejandro Gonzalez | 7-5,7-5 |
| Challenger - Lima | 2021/09/26 16:00 | Arklon H D Pino v Alejandro Gonzalez | 4-6,7-6,6-7 |
| Challenger - Ambato | 2021/09/21 15:00 | Alejandro Gonzalez v Pedro Sakamoto | 3-6,4-6 |
| Challenger - Ambato | 2021/09/20 15:00 | Alejandro Gonzalez v Pol Martin Tiffon | 3-6,4-6 |
| Challenger - Ambato | 2021/09/19 17:10 | Alejandro Gonzalez v Alejandro Mendoza | 6-2,6-2 |
| Challenger - Quito | 2021/09/16 15:00 | Pol Martin Tiffon v Alejandro Gonzalez | 4-6,7-6,6-3 |