Stadium: Court 5 Round: 45 Ground: Clay
| ITF Argentina F3 | 2018/05/28 15:30 | Javier Naser v Oscar Gabriel Ortiz | 6-2,4-6,7-6 |
| ITF Chile F3 | 2018/11/27 15:10 | Esteban Bruna v Oscar Gabriel Ortiz | 6-7,6-3,6-1 |
| ITF Chile F3 | 2018/11/26 14:00 | Guido Ivan Justo v Oscar Gabriel Ortiz | 4-6,4-6 |
| ITF Chile F3 | 2018/11/25 15:30 | Oscar Gabriel Ortiz v Cristopher Kohl | 6-4,7-5 |
| ITF Chile F3 | 2018/11/24 15:00 | Oscar Gabriel Ortiz v Oscar Matias Leiva Biason | 6-2,6-4 |
| ITF Chile F2 | 2018/11/18 16:00 | Oscar Gabriel Ortiz v Rodrigo Echavarria | 4-6,3-6 |
| ITF Chile F2 | 2018/11/17 16:00 | Oscar Gabriel Ortiz v Karl W W Mac-Leay | 6-1,6-3 |
| ITF Argentina F9 | 2018/11/13 12:30 | Guido Ivan Justo v Oscar Gabriel Ortiz | 1-6,6-3,6-4 |
| ITF Argentina F8 | 2018/11/04 13:00 | Oscar Gabriel Ortiz v Santiago Besada | 2-6,1-6 |
| ITF Chile F3 | 2018/11/26 14:00 | Juan Pablo Cenoz v Javier Naser | 6-3,6-1 |
| ITF Chile F3 | 2018/11/25 15:30 | Javier Araya v Javier Naser | 6-4,2-6,4-6 |
| ITF Chile F2 | 2018/11/20 20:45 | Javier Naser v Mariano Kestelboim | 3-6,4-6 |
| ITF Chile F1 | 2018/11/12 17:20 | Ignacio Monzon v Javier Naser | 6-2,6-3 |
| ITF Brazil F8 | 2018/11/08 18:10 | Javier Naser v Joao Lucas Reis da Silva | 3-6,4-6 |
| ITF Brazil F8 | 2018/11/05 15:35 | Asdrubal Gobernate v Javier Naser | 2-6,6-4,4-6 |
| ITF Brazil F8 | 2018/11/04 15:30 | Victor Bertoldo v Javier Naser | 4-6,2-6 |
| ITF Brazil F6 | 2018/10/22 14:40 | Enrique Bogo v Javier Naser | 6-2,6-2 |