Stadium: Court 1 Round: 54 Ground: Clay
| ITF Peru F3 | 2018/10/07 16:00 | Tomas Farjat v Matias Riva | 6-7,6-0,6-2 |
| ITF Argentina F7 | 2018/11/01 14:00 | Tomas Farjat v Agustin Velotti | 4-6,4-6 |
| ITF Argentina F7 | 2018/10/30 20:00 | Santiago Besada v Tomas Farjat | 3-6,4-6 |
| ITF Peru F3 | 2018/10/08 15:00 | Tomas Farjat v Mateus Alves | 6-7,3-6 |
| ITF Peru F3 | 2018/10/07 16:00 | Tomas Farjat v Matias Riva | 6-7,6-0,6-2 |
| ITF Peru F3 | 2018/10/06 14:00 | Tomas Farjat v Mario Urquidi | 6-4,5-7,6-2 |
| ITF Peru F2 | 2018/10/03 15:30 | Mariano Kestelboim v Tomas Farjat | 6-1,6-1 |
| ITF Peru F2 | 2018/10/02 17:15 | Alejandro Mendoza v Tomas Farjat | 3-6,3-6 |
| ITF Peru F2 | 2018/10/01 15:00 | Tomas Farjat v Julian Gimenez | 6-4,6-4 |
| ITF Peru F3 | 2018/10/07 16:00 | Tomas Farjat v Matias Riva | 6-7,6-0,6-2 |
| ITF Peru F2 | 2018/09/29 18:00 | Matias Riva v Laelson Rodrigues | 7-6,4-6,2-6 |
| ITF Bolivia F3 | 2018/09/25 14:00 | Matias Riva v Goran Markovic | 7-6,2-6,3-6 |
| ITF Bolivia F3 | 2018/09/24 15:30 | Matias Riva v Lucas C R Crichigno | 5-7,7-5,7-5 |
| ITF Bolivia F3 | 2018/09/23 14:00 | Manuel Barros v Matias Riva | 3-6,4-6 |
| 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 |