| ITF M15 Cordoba | 2024/09/14 15:00 | Fernando Cavallo v Guido Ivan Justo | 3-6,1-6 |
| ITF M15 Neuquen | 2024/05/14 16:05 | Fernando Cavallo v Guido Ivan Justo | 0-6,2-6 |
| ITF M15 San Salvador de Jujuy | 2025/07/04 14:00 | Guido Ivan Justo v Gustavo R de Almeida | 6-3,6-2 |
| ITF M15 San Salvador de Jujuy | 2025/07/03 16:55 | Guido Ivan Justo v Mateo Carballo | 6-2,6-2 |
| ITF M15 San Salvador de Jujuy | 2025/07/02 14:00 | Guido Ivan Justo v Nicolas Garcia Longo | 6-2,2-6,6-3 |
| Challenger Lima | 2025/06/25 00:00 | Gonzalo Bueno v Guido Ivan Justo | 6-0,6-4 |
| Challenger Santa Cruz | 2025/06/17 21:25 | Lucas Gerch v Guido Ivan Justo | 6-3,6-7,7-6 |
| Challenger Santa Fe | 2025/06/10 16:40 | Guido Ivan Justo v Renzo Olivo | 0-1 |
| Challenger Porto Alegre | 2025/05/02 15:55 | Santiago Rodriguez Taverna v Guido Ivan Justo | 6-4,6-7,6-3 |
| Challenger Porto Alegre | 2025/05/01 14:00 | Guido Ivan Justo v Hernan Casanova | 6-3,6-1 |
| ITF M15 San Salvador de Jujuy | 2025/07/01 13:00 | Enzo Kohlmann De Freitas v Fernando Cavallo | 6-2,5-1 |
| ITF M25 Coquimbo | 2025/05/26 13:30 | Fernando Cavallo v Felipe Dreer | 6-2,3-6,0-1 |
| ITF M25 Coquimbo | 2025/05/19 13:30 | Fernando Cavallo v Amador Salazar | 4-6,2-6 |
| ITF M25 Lujan | 2025/03/26 16:36 | Nicolas Bruna v Fernando Cavallo | 4-6,6-2,6-2 |
| ITF M15 Villa Maria | 2025/03/20 15:08 | Fernando Cavallo v Pedro Rodrigues | 5-7,1-6 |
| ITF M15 Villa Maria | 2025/03/18 17:58 | Fernando Cavallo v Mateo Carballo | 6-4,6-2 |
| ITF M25 Asuncion | 2025/03/11 11:30 | Fernando Cavallo v Victor Lilov | 4-6,2-6 |
| UTR Pro Tigre | 2025/02/23 12:00 | Fernando Cavallo v Santiago Russo | 6-1,7-5 |