Stadium: Cancha Central Round: 25 Ground: Clay
| Challenger San Miguel de Tucuman | 2025/04/23 15:40 | Mariano Kestelboim v Alvaro Guillen Meza | 6-1,3-6,6-2 |
| Challenger Campinas | 2025/04/02 16:00 | Alvaro Guillen Meza v Mariano Kestelboim | 6-2,7-5 |
| ITF M25 Punta del Este | 2025/02/23 14:30 | Mariano Kestelboim v Alvaro Guillen Meza | 1-6,2-6 |
| Challenger Santos | 2025/05/11 20:00 | Alvaro Guillen Meza v Matheus Pucinelli De Almeida | 6-3,7-6 |
| Challenger Santos | 2025/05/11 16:25 | Alvaro Guillen Meza v Franco Roncadelli | 6-2,7-6 |
| Challenger Santos | 2025/05/09 16:35 | Alvaro Guillen Meza v Renzo Olivo | 6-3,6-3 |
| Challenger Santos | 2025/05/07 14:00 | Alvaro Guillen Meza v Bruno Kuzuhara | 1-6,6-4,6-4 |
| Challenger Santos | 2025/05/05 17:00 | Alvaro Guillen Meza v Zdenek Kolar | 6-4,6-4 |
| Challenger Porto Alegre | 2025/04/29 22:45 | Alvaro Guillen Meza v Matheus Pucinelli De Almeida | 1-6,6-3,0-6 |
| Challenger San Miguel de Tucuman | 2025/04/23 15:40 | Mariano Kestelboim v Alvaro Guillen Meza | 6-1,3-6,6-2 |
| Challenger Campinas | 2025/04/06 14:00 | Tomas Barrios Vera v Alvaro Guillen Meza | 6-4,6-3 |
| Challenger San Miguel de Tucuman | 2025/04/25 13:00 | Alex Barrena v Mariano Kestelboim | 6-0,6-2 |
| Challenger San Miguel de Tucuman | 2025/04/24 13:00 | Fermin Tenti v Mariano Kestelboim | 5-7,3-6 |
| Challenger San Miguel de Tucuman | 2025/04/23 15:40 | Mariano Kestelboim v Alvaro Guillen Meza | 6-1,3-6,6-2 |
| Challenger Campinas | 2025/04/02 16:00 | Alvaro Guillen Meza v Mariano Kestelboim | 6-2,7-5 |
| Challenger Campinas | 2025/04/01 14:00 | Mariano Kestelboim v Guido Ivan Justo | 7-5,6-1 |
| ITF M25 Lujan | 2025/03/30 14:00 | Lautaro Midon v Mariano Kestelboim | 6-3,6-1 |
| ITF M25 Lujan | 2025/03/29 15:12 | Mariano Kestelboim v Santiago Rodriguez Taverna | 6-0,6-3 |
| ITF M25 Lujan | 2025/03/28 14:30 | Mariano Kestelboim v Alejo Lorenzo Lingua Lavallen | 7-5,6-4 |