Stadium: Court 5 Round: 27 Ground: Clay
| ITF M15 Cancun | 2020/01/29 16:10 | Hernandez Serrano, Juan Alejandro v Lopez Villasenor, Gerardo | 6-7,7-5,5-7 |
| ITF M15 Ibague | 2021/09/09 14:30 | Hernandez Serrano, Juan Alejandro v Tacchi, Luciano | 6-4,6-3 |
| ITF M15 Ibague | 2021/09/08 17:00 | Hernandez Serrano, Juan Alejandro v Mateo Barreiros Reyes | 7-6,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 13:00 | Patino, Luis v Hernandez Serrano, Juan Alejandro | 4-6,6-2,6-2 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 14:30 | Hernandez Serrano, Juan Alejandro v Lazaro Navarro-Batles | 6-3,6-0 |
| UTR Pro Tennis Series Manzanillo | 2021/08/12 16:00 | Hernandez Serrano, Juan Alejandro v Alan Magadan | 7-6,6-7,6-0 |
| UTR Pro Tennis Series Manzanillo | 2021/08/11 16:00 | Takeyasu Sekiguchi v Hernandez Serrano, Juan Alejandro | 4-6,6-3,3-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/10 13:00 | Sepulveda, Marcelo v Hernandez Serrano, Juan Alejandro | 1-6,3-6 |
| ITF M25 Guayaquil | 2021/08/05 14:30 | Jose Pereira v Hernandez Serrano, Juan Alejandro | 6-3,6-3 |
| ITF M15 Ibague | 2021/09/09 16:55 | Gomez, Mateo v Lopez Villasenor, Gerardo | 6-0,3-6,1-6 |
| ITF M15 Ibague | 2021/09/07 19:45 | Murkel Dellien v Lopez Villasenor, Gerardo | 4-6,6-7 |
| UTR Pro Tennis Series Manzanillo | 2021/08/15 14:00 | Patino, Luis v Lopez Villasenor, Gerardo | 6-2,6-4 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 14:30 | Sau Franco, Alan Raul v Lopez Villasenor, Gerardo | 4-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/13 16:00 | de Alba, Rafael v Lopez Villasenor, Gerardo | 2-6,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/12 14:30 | Manuel S Montemayor v Lopez Villasenor, Gerardo | 5-7,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/10 14:30 | Nathan Oppenheim v Lopez Villasenor, Gerardo | 5-7,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/09 17:00 | Lopez Villasenor, Gerardo v Rodriguez, J. A. | 6-4,5-2 |