Stadium: Court 5 Round: 25 Ground: Clay
| ITF M15 Arequipa | 2023/08/10 16:00 | Alvaro Guillen Meza v Juan Manuel La Serna | 6-4,6-4 |
| Davis Cup | 2024/02/02 09:00 | Mohamed Safwat v Alvaro Guillen Meza | 4-6,7-6,7-6 |
| Challenger Punta del Este | 2024/01/23 16:00 | Roman Andres Burruchaga v Alvaro Guillen Meza | 6-4,7-5 |
| Challenger Punta del Este | 2024/01/22 16:00 | Federico Agustin Gomez v Alvaro Guillen Meza | 6-2,6-4 |
| Challenger Punta del Este | 2024/01/21 16:35 | Federico Juan Aguilar v Alvaro Guillen Meza | 2-6,3-6 |
| Challenger Buenos Aires | 2024/01/17 14:45 | Felix Gill v Alvaro Guillen Meza | 6-2,6-2 |
| Challenger Buenos Aires | 2024/01/08 21:35 | Alvaro Guillen Meza v Gianluca Mager | 4-6,4-6 |
| Challenger Montevideo | 2023/11/16 18:45 | Alvaro Guillen Meza v Roman Andres Burruchaga | 6-4,4-6,3-6 |
| Challenger Montevideo | 2023/11/14 19:00 | Alvaro Guillen Meza v Luciano Darderi | 7-6,6-7,6-4 |
| ITF M25 Punta del Este | 2024/02/06 12:00 | Juan Manuel La Serna v Mateo Del Pino | 6-2,4-6,10-6 |
| ITF M15 Concepcion | 2023/12/11 14:30 | Luciano Carraro v Juan Manuel La Serna | 6-3,5-7,6-3 |
| ITF M15 Concepcion | 2023/12/08 15:25 | Juan Manuel La Serna v Valerio Aboian | 6-4,0-6,3-6 |
| ITF M15 Concepcion | 2023/12/07 14:00 | Juan Manuel La Serna v Thiago Cigarran | 6-4,6-2 |
| ITF M15 Concepcion | 2023/12/05 15:25 | Juan Pablo Paz v Juan Manuel La Serna | 4-6,3-6 |
| ITF M15 Santa Cruz | 2023/11/29 19:00 | Juan Manuel La Serna v Valerio Aboian | 6-4,6-7,5-7 |
| ITF M15 Santa Cruz | 2023/11/21 21:05 | Alex Barrena v Juan Manuel La Serna | 6-2,6-3 |
| ITF M15 Cochabamba | 2023/11/14 20:40 | Juan Manuel La Serna v Valerio Aboian | 2-6,4-6 |