Ground: Clay
| Challenger Lima | 2023/11/05 15:00 | Alex Barrena v Alvaro Guillen Meza | 5-7,1-6 |
| Challenger Rosario | 2025/02/03 01:00 | Alex Barrena v Nikolas Sanchez Izquierdo | 6-3,4-6,7-6 |
| Challenger Piracicaba | 2025/01/26 17:20 | Alex Barrena v Pedro Boscardin Dias | 2-6,2-6 |
| Challenger Punta del Este | 2025/01/20 17:05 | Mateus Alves v Alex Barrena | 6-2,4-6,6-3 |
| Challenger Punta del Este | 2025/01/19 14:00 | Alex Barrena v Nikolas Sanchez Izquierdo | 3-6,6-3,6-1 |
| Challenger Buenos Aires | 2025/01/12 16:00 | Alex Barrena v Mariano Kestelboim | 1-6,6-7 |
| ITF M15 Santiago | 2024/12/06 14:00 | Alex Barrena v Santiago De La Fuente | 6-3,4-6,5-7 |
| ITF M15 Santiago | 2024/12/05 16:00 | Alex Barrena v Lautaro Agustin Falabella | 6-2,6-3 |
| ITF M15 Santiago | 2024/12/03 15:00 | Alex Barrena v Bruno Fernandez | 6-3,6-3 |
| Davis Cup | 2025/02/01 22:50 | Alvaro Guillen Meza v Franco Roncadelli | 6-7,0-6 |
| Challenger Punta del Este | 2025/01/21 22:35 | Tomas Barrios Vera v Alvaro Guillen Meza | 3-6,6-4,7-6 |
| Challenger Buenos Aires | 2025/01/18 13:00 | Adolfo Daniel Vallejo v Alvaro Guillen Meza | 7-5,6-2 |
| Challenger Buenos Aires | 2025/01/17 13:00 | Alvaro Guillen Meza v Santiago Rodriguez Taverna | 6-1,6-4 |
| Challenger Buenos Aires | 2025/01/15 13:00 | Alvaro Guillen Meza v Joel Schwaerzler | 6-3,6-2 |
| Challenger Temuco | 2024/11/27 13:00 | Alvaro Guillen Meza v Daniel Dutra Da Silva | 6-7,3-6 |
| Challenger Temuco | 2024/11/26 16:05 | Mateus Alves v Alvaro Guillen Meza | 4-6,6-4,6-7 |
| Challenger Sao Paulo | 2024/11/18 16:20 | Juan C P Angelo v Alvaro Guillen Meza | 6-4,6-1 |