Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2019/03/29 14:00 | Diego Hidalgo v Gerardo L Villasenor | 6-3,6-3 |
| ITF M15 Cancun | 2019/03/23 14:00 | Gerardo L Villasenor v Diego Hidalgo | 6-7,6-7 |
| ITF M25 Pensacola | 2021/05/19 14:30 | Aidan Mchugh v Gerardo L Villasenor | 6-4,6-3 |
| ATP Acapulco | 2021/03/16 00:00 | Gerardo L Villasenor v Dominik Koepfer | 4-6,2-6 |
| Davis Cup | 2021/03/06 16:00 | Dimitar Kuzmanov v Gerardo L Villasenor | 6-7,6-4,6-7 |
| Davis Cup | 2021/03/05 15:10 | Adrian Andreev v Gerardo L Villasenor | 6-3,1-6,2-6 |
| ITF M25 Vale Do Lobo | 2021/02/24 12:10 | Gerardo L Villasenor v Pedro Araujo | 4-6,1-6 |
| ITF M15 Antalya | 2021/02/16 07:00 | Oleksii Krutykh v Gerardo L Villasenor | 6-1,7-5 |
| ITF M15 Antalya | 2021/02/08 07:00 | Gerardo L Villasenor v Sebastian Gima | 6-3,1-6,7-10 |
| ITF M15 Antalya | 2021/02/07 06:00 | Gerardo L Villasenor v Valentin Vanta | 6-4,6-7,10-8 |
| Challenger Salinas 2 | 2021/04/27 16:15 | Adrian Menendez-Maceiras v Diego Hidalgo | 7-5,6-0 |
| Challenger Salinas | 2021/04/20 15:50 | Diego Hidalgo v Nicolas Mejia | 3-6,6-1,5-7 |
| ITF M25 Naples | 2021/02/26 15:55 | Corentin Denolly v Diego Hidalgo | 6-2,6-2 |
| ITF M25 Naples | 2021/02/25 18:10 | Diego Hidalgo v Louis Wessels | 6-2,6-4 |
| ITF M25 Naples | 2021/02/24 14:50 | Diego Hidalgo v Nick Chappell | 6-3,1-6,6-4 |
| Challenger Concepcion | 2021/02/14 18:35 | Rafael Matos v Diego Hidalgo | 7-5,6-1 |
| ITF M15 Antalya | 2021/02/04 07:50 | Hamad Medjedovic v Diego Hidalgo | 7-5,6-3 |
| ITF M15 Antalya | 2021/02/03 14:05 | Vladimir Korolev v Diego Hidalgo | 1-6,1-6 |