Stadium: Cancha 12 Round: 62 Ground: Clay
| 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 Morocco F4 | 2018/08/08 10:00 | Andrea Bessire v Manuel Barros | 6-3,7-5 |
| ITF Bolivia F2 | 2018/09/15 16:00 | Matias Riva v Alex Blumenberg | 4-6,4-6 |
| ITF Argentina F4 | 2018/09/01 12:00 | Benjamin L Ambrosio v Matias Riva | 6-1,6-1 |
| ITF Argentina F3 | 2018/05/26 12:00 | Lautaro Agustin Falabella v Matias Riva | 6-1,6-3 |
| ITF Argentina F2 | 2018/05/19 12:00 | Matias Riva v Oscar Gabriel Ortiz | 1-6,3-6 |
| ITF Argentina F1 | 2018/05/13 14:30 | Alan Postay v Matias Riva | 6-3,6-0 |
| ITF Argentina F12 | 2017/12/03 12:00 | Leonardo Aboian v Matias Riva | 6-4,6-4 |
| ITF Argentina F11 | 2017/11/26 13:00 | Gaston Tonello v Matias Riva | 6-2,6-1 |
| ITF Argentina F9 | 2017/11/11 14:00 | Matias Riva v Juan M G Paiva | 0-6,6-2,6-7 |