Stadium: Court 1 Round: 25 Ground: Clay
| ITF - M15 Santiago | 2019/10/02 16:50 | Juan Manuel Cerundolo v Hidalgo, Gabriel Alejandro | 7-6,6-0 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/19 12:00 | Hidalgo, Gabriel Alejandro v Estevez Maximiliano | 1-6,1-6 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/18 13:20 | Hidalgo, Gabriel Alejandro v Enrique Bogo | 5-7,6-2,6-3 |
| ITF M15 Lambare | 2019/08/24 15:00 | Gonzalo Villanueva v Hidalgo, Gabriel Alejandro | 6-4,6-4 |
| ITF M15 Lambare | 2019/08/23 17:45 | Federico Zeballos v Hidalgo, Gabriel Alejandro | 4-6,6-3,6-7 |
| ITF M15 Lambare | 2019/08/22 15:35 | Ignacio Monzon v Hidalgo, Gabriel Alejandro | 2-6,1-6 |
| ITF M15 Lambare | 2019/08/21 18:35 | Hidalgo, Gabriel Alejandro v March, Antonio Cayetano | 4-6,6-3,6-2 |
| La Paz, Singles M-ITF-BOL-02A | 2019/08/14 14:00 | Estevez Maximiliano v Hidalgo, Gabriel Alejandro | 5-7,6-3,6-2 |
| Junin, Singles M-ITF-ARG-23A | 2019/10/22 12:00 | Erhardt, Gaston v Aguilar, Federico Juan | 6-4,6-4 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/15 16:45 | Oliveira, Cristian v Erhardt, Gaston | 7-6,6-3 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/14 14:00 | Paulo A S Dos Santos v Erhardt, Gaston | 5-7,6-2,6-10 |
| ITF M25 Rio de Janeiro | 2019/10/07 14:00 | Miele, Andre v Erhardt, Gaston | 6-2,6-2 |
| ITF - M15 Santiago | 2019/10/02 11:00 | Derdoy, Felipe v Erhardt, Gaston | 6-3,6-2 |
| ITF - M15 Santiago | 2019/09/30 14:00 | Moura, Hugo v Erhardt, Gaston | 2-6,0-6 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/17 15:35 | Matias Franco Descotte v Erhardt, Gaston | 6-0,7-5 |
| ITF M15 Lambare | 2019/08/22 18:20 | Miele, Andre v Erhardt, Gaston | 6-2,7-6 |