| UTR Pro Tennis Series Cancun | 11/19 20:10 | - | Juan Sebastian Gomez v Hernandez Serrano, Juan Alejandro | 5-7,4-6 | |
| UTR Pro Tennis Series Cancun | 11/19 15:00 | - | Barrientos, Nicolas v Hernandez Serrano, Juan Alejandro | 6-4,6-3 | |
| UTR Pro Tennis Series Cancun | 11/16 14:00 | - | Hernandez Serrano, Juan Alejandro v Lopez, Luis Humberto | 6-3,6-3 | |
| Monterrey, Mexico | 03/02 21:45 | 24 | Shintaro Mochizuki v Hernandez Serrano, Juan Alejandro | 6-3,4-6,6-2 | |
| ATP - Acapulco | 02/23 03:50 | 64 | Hernandez Serrano, Juan Alejandro v Marcos Giron | 5-7,1-6 | |
| Challenger - Morelos | 02/17 21:30 | 24 | Hernandez Serrano, Juan Alejandro v Rodriguez, Cristian | 3-6,2-6 | |
| ITF M15 Cancun | 02/13 18:55 | 26 | Justin Roberts v Hernandez Serrano, Juan Alejandro | 6-3,7-6 | |
| ITF M15 Cancun | 02/12 14:00 | 25 | Ribeiro Marcondes, Igor v Hernandez Serrano, Juan Alejandro | 4-6,2-6 | |
| ITF M15 Cancun | 01/29 16:10 | 25 | Hernandez Serrano, Juan Alejandro v Lopez Villasenor, Gerardo | 6-7,7-5,5-7 | |
| ITF M15 Cancun | 01/16 17:00 | 26 | Hernandez Serrano, Juan Alejandro v Banzer, Rodrigo | 4-6,2-6 | |
| ITF M15 Cancun | 01/14 13:50 | 25 | Hernandez Serrano, Juan Alejandro v Khan, Zane | 6-7,6-3,6-4 | |
| ITF M15 Cancun | 12/11 18:25 | 25 | Benjamin, Jordan v Hernandez Serrano, Juan Alejandro | 3-6,1-6 | |
| ITF M15 Cancun | 12/05 14:50 | 26 | Hernandez Serrano, Juan Alejandro v Butsch, Justin | 6-4,6-2 | |
| ITF M15 Cancun | 12/03 14:00 | 25 | Farren, Connor v Hernandez Serrano, Juan Alejandro | 2-6,4-6 | |
| ITF M15 Cancun | 11/15 19:05 | 25 | March, Antonio Cayetano v Hernandez Serrano, Juan Alejandro | 6-3,6-4 | |
| ITF M15 Cancun | 11/05 19:30 | 25 | Green, Cameron v Hernandez Serrano, Juan Alejandro | 4-6,6-4,6-3 | |
| ITF M15 Cancun | 10/23 17:00 | 25 | Maier, Jonas v Hernandez Serrano, Juan Alejandro | 6-3,6-3 | |
| ITF M15 Cancun | 10/15 15:25 | 25 | Hernandez Serrano, Juan Alejandro v Bybel, Nicholas | Retired | |
| ITF M15 Cancun | 10/10 18:45 | 26 | Hernandez Serrano, Juan Alejandro v El Midhawy, Adam | 2-6,4-6 | |
| ITF M15 Cancun | 10/08 18:20 | 25 | Reyes, Nicholas Alexander v Hernandez Serrano, Juan Alejandro | 4-6,3-6 | |
| ITF M15 Cancun | 09/26 17:45 | 26 | Hernandez Serrano, Juan Alejandro v Astorga, Mauricio | 2-6,6-4,3-6 | |
| ITF M15 Cancun | 09/24 14:00 | 25 | Jody Maginley v Hernandez Serrano, Juan Alejandro | Retired | |
| ITF M15 Cancun | 09/17 17:55 | 25 | Karlo Cubelic v Hernandez Serrano, Juan Alejandro | Retired | |
| ITF M15 Cancun | 09/11 14:10 | 25 | Brymer, Gage v Hernandez Serrano, Juan Alejandro | 6-0,6-0 | |
| ITF M15 Cancun | 08/28 15:50 | 25 | Hernandez Serrano, Juan Alejandro v George Goldhoff | 4-6,1-6 | |
| ITF M15 Cancun | 07/11 13:30 | 26 | Nicolas Mejia v Hernandez Serrano, Juan Alejandro | 6-1,6-3 | |
| ITF M15 Cancun | 07/09 13:30 | 25 | Hovhannisyan, Mousheg v Hernandez Serrano, Juan Alejandro | 4-6,3-6 | |
| ITF M15 Cancun | 07/04 13:30 | 26 | Hernandez Serrano, Juan Alejandro v Nicolas Moreno De Alboran | 6-1,2-6,2-6 | |
| ITF M15 Cancun | 07/03 15:30 | 25 | Hernandez Serrano, Juan Alejandro v Pierce, Aron | 6-1,6-4 | |
| ITF M15 Cancun | 06/27 13:30 | 26 | Sigouin, Benjamin v Hernandez Serrano, Juan Alejandro | 6-7,7-5,6-1 |