Stadium: Quadra 1 Round: 54 Ground: Clay
| ITF M15 Bucaramanga | 2019/04/22 20:30 | Oscar Matias Leiva Biason v Joao M Nusdeo | 2-6,6-7 |
| ITF M15 Guayaquil | 2019/04/15 15:00 | Oscar Matias Leiva Biason v Joao M Nusdeo | 4-6,2-6 |
| ITF Chile F3 | 2018/11/24 15:00 | Oscar Gabriel Ortiz v Oscar Matias Leiva Biason | 6-2,6-4 |
| ITF Chile F2 | 2018/11/17 16:00 | Oscar Matias Leiva Biason v Mateo Berne | 6-3,3-6,3-6 |
| ITF Chile F1 | 2018/11/12 13:00 | Oscar Matias Leiva Biason v Federico Juan Aguilar | 1-6,3-6 |
| ITF Belgium F7 Qual | 2018/08/05 08:00 | Nico Mertens v Oscar Matias Leiva Biason | 6-1,6-0 |
| ITF Belgium F7 Qual | 2018/08/04 07:30 | Oscar Matias Leiva Biason v Javier A V. Meza | 6-0,6-0 |
| ITF Belgium F6 Qual | 2018/07/28 09:30 | Amaury Delmas v Oscar Matias Leiva Biason | 6-0,6-3 |
| ITF M15 Buenos Aires | 2019/05/09 14:50 | Agustin Riquelme Coppari v Alejo Vilaro | 3-6,2-6 |
| ITF M15 Buenos Aires | 2019/05/08 14:50 | Agustin Riquelme Coppari v Gian M Di Natale | 6-2,7-5 |
| ITF M15 Buenos Aires | 2019/04/30 16:05 | Agustin Riquelme Coppari v Francisco Cerundolo | 7-5,5-7,0-6 |
| ITF M15 Pinamar | 2019/04/03 17:30 | Agustin Riquelme Coppari v Gabriel Alejandro Hidalgo | 4-6,3-6 |
| ITF M15 Pinamar | 2019/03/27 17:25 | Agustin Riquelme Coppari v Juan Manuel Cerundolo | 2-6,1-6 |
| ITF M15 Pinamar | 2019/03/20 17:20 | Gabriel Alejandro Hidalgo v Agustin Riquelme Coppari | 6-3,6-3 |
| ITF Argentina F9 | 2018/11/14 17:15 | Agustin Riquelme Coppari v Juan Pablo Paz | 0-6,3-6 |
| ITF Argentina F9 | 2018/11/13 17:15 | Agustin Riquelme Coppari v Julian Gimenez | 6-4,2-6,6-4 |