Stadium: Court 5 Round: 45 Ground: Clay
| ITF Bolivia F3 | 2018/09/23 14:00 | Manuel Barros v Matias Riva | 3-6,4-6 |
| ITF Bolivia F2 | 2018/09/15 13:30 | Manuel Barros v Javier Naser | 7-5,4-6,4-6 |
| ITF Bolivia F1 | 2018/09/10 18:00 | Manuel Barros v Nicolas F Vina | 6-7,4-6 |
| ITF Bolivia F1 | 2018/09/09 14:00 | Manuel Barros v Federico Juan Aguilar | 6-4,6-1 |
| ITF Argentina F4 | 2018/09/02 15:30 | Nicolas De Marco v Manuel Barros | 7-5,6-4 |
| ITF Argentina F4 | 2018/09/01 17:30 | Joaquin Ledesma v Manuel Barros | 2-6,1-6 |
| ITF Spain F23 | 2018/08/12 08:30 | Manuel Barros v Alejandro Vedri Asensi | 2-6,5-7 |
| ITF Spain F23 | 2018/08/11 10:00 | Manuel Barros v Afonso Cortez | 6-1,7-6 |
| 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 |