Round: 54 Ground: Clay
| ITF M15 Junin | 2019/10/23 17:20 | Gabriel Alejandro Hidalgo v Gaston Erhardt | 6-0,6-1 |
| ITF M15 Junin | 2019/10/22 12:00 | Gaston Erhardt v Federico Juan Aguilar | 6-4,6-4 |
| ITF M15 Sao Paulo | 2019/10/15 16:45 | Christian Oliveira v Gaston Erhardt | 7-6,6-3 |
| ITF M15 Sao Paulo | 2019/10/14 14:00 | Paulo A S Dos Santos v Gaston Erhardt | 5-7,6-2,6-10 |
| ITF M25 Rio de Janeiro | 2019/10/07 14:00 | Andre Miele v Gaston Erhardt | 6-2,6-2 |
| ITF M15 Santiago | 2019/10/02 11:00 | Felipe Derdoy v Gaston Erhardt | 6-3,6-2 |
| ITF M15 Santiago | 2019/09/30 14:00 | Hugo Moura v Gaston Erhardt | 2-6,0-6 |
| ITF M15 Buenos Aires | 2019/09/17 15:35 | Matias Franco Descotte v Gaston Erhardt | 6-0,7-5 |
| ITF M15 Maldonado | 2019/11/25 12:00 | Ezequiel Simonit v Francisco Aranguren | 6-3,1-6,3-10 |
| ITF M15 Junin | 2019/10/23 15:15 | Francisco Aranguren v Santiago Rodriguez Taverna | 4-6,3-6 |
| ITF M15 Junin | 2019/10/22 12:00 | Franco Roncadelli v Francisco Aranguren | 4-6,6-4,3-10 |
| ITF M15 Junin | 2019/10/21 14:30 | Francisco Aranguren v Mateo Berne | 6-1,6-0 |
| ITF M15 La Paz | 2019/08/12 14:00 | Felipe Santamaria v Francisco Aranguren | 1-6,6-4,10-8 |
| ITF M15 Santa Cruz | 2019/08/05 19:00 | Ramiro Pioli Tizon v Francisco Aranguren | 6-4,7-5 |
| ITF Argentina F6 | 2018/09/16 15:15 | Francisco Aranguren v Alan Postay | 2-6,2-6 |
| ITF Argentina F5 | 2018/09/08 12:00 | Nicolas Bruna v Francisco Aranguren | 6-3,7-6 |