Stadium: Cancha 1 Round: 24 Ground: Clay
| Challenger Lima | 2019/10/23 15:00 | Facundo Bagnis v Gonzalez, Alejandro | 6-3,6-3 |
| Challenger Lima | 2019/10/22 15:00 | Iamachkine, Pedro v Gonzalez, Alejandro | 7-5,6-7,2-6 |
| Challenger Lima | 2019/10/21 14:30 | Wilson Leite v Gonzalez, Alejandro | 2-6,5-7 |
| Santo Domingo, Dominican Republic | 2019/10/08 20:40 | Gonzalez, Alejandro v Juan Pablo Varillas | 2-6,5-7 |
| Challenger Campinas | 2019/10/03 14:00 | Gonzalez, Alejandro v Juan Pablo Ficovich | 3-6,3-6 |
| Challenger Campinas | 2019/10/01 17:00 | Hernandez-Fernandez, Jose v Gonzalez, Alejandro | 6-7,7-6,3-6 |
| Challenger Campinas | 2019/09/30 18:40 | Gonzalez, Alejandro v Joao Lucas Reis da Silva | 7-5,7-5 |
| ITF M25 Madrid | 2019/09/22 09:00 | Benjamin Bonzi v Gonzalez, Alejandro | 6-2,7-6 |
| ITF M25 Rio de Janeiro | 2019/10/10 21:40 | Matos, Rafael v Facundo Diaz Acosta | 6-1,6-3 |
| ITF - M15 Santiago | 2019/10/03 18:30 | Alejo Lorenzo Lingua Lavallen v Facundo Diaz Acosta | 6-4,6-4 |
| ITF - M15 Santiago | 2019/10/03 17:00 | Alejo Lorenzo Lingua Lavallen v Facundo Diaz Acosta | 6-4,6-4 |
| ITF - M15 Santiago | 2019/10/02 16:30 | Vernier, Michel v Facundo Diaz Acosta | 6-7,4-6 |
| Challenger - Buenos Aires | 2019/09/26 21:30 | Mayer, Leonardo v Facundo Diaz Acosta | 7-6,6-3 |
| Challenger - Buenos Aires | 2019/09/25 16:05 | Facundo Diaz Acosta v Renzo Olivo | 7-5,4-6,6-2 |
| Challenger - Buenos Aires | 2019/09/24 14:00 | Mariano Kestelboim v Facundo Diaz Acosta | 3-6,7-5,5-7 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/20 15:00 | Facundo Diaz Acosta v Gonzalo Villanueva | 5-7,1-6 |