Stadium: Court 5 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2019/12/01 19:00 | Leiva Biason, Oscar Mattias v Benjamin, Jordan | 3-6,1-6 |
| ITF - M15 Santiago | 2019/09/30 14:00 | Besada, Santiago v Leiva Biason, Oscar Mattias | 6-4,6-4 |
| Buenos Aires, Singles Qualifying M-ITF-ARG-22A | 2019/09/15 17:00 | Mariano Navone v Leiva Biason, Oscar Mattias | 6-1,6-1 |
| ITF M25 Lima | 2019/07/15 15:00 | Daniel Antonio Nunez v Leiva Biason, Oscar Mattias | 6-4,6-3 |
| ITF M15 Lima | 2019/07/09 14:00 | Leiva Biason, Oscar Mattias v Agustin Maria Gascia | 4-6,3-6 |
| Curitiba, Singles M-ITF-BRA-04A | 2019/06/24 18:30 | Leiva Biason, Oscar Mattias v Azevedo Pereira E Oliveira, Bernardo | 4-6,6-4,4-10 |
| Sao Jose Do Rio Preto, Singles M-ITF-BRA-03A | 2019/06/17 16:00 | Leiva Biason, Oscar Mattias v Riquelme Coppari, Agustin | 3-6,5-7 |
| Bucaramanga, Singles M-ITF-COL-01A | 2019/04/22 20:30 | Leiva Biason, Oscar Mattias v Nusdeo, Joao Marcos | 2-6,6-7 |
| ITF M15 Cancun | 2019/12/04 14:30 | Fernando Yamacita v Gonzalez, Javier (Chl) | 7-6,6-2 |
| ITF M15 Cancun | 2019/12/02 15:30 | Panta, Gianfranco v Gonzalez, Javier (Chl) | 6-7,2-6 |
| ITF M15 Cancun | 2019/11/18 13:45 | Alex Hernandez v Gonzalez, Javier (Chl) | 6-0,6-2 |
| ITF M15 Cancun | 2019/11/17 15:30 | Mayagoitia, Ricardo David v Gonzalez, Javier (Chl) | 2-6,3-6 |
| ITF M15 Cancun | 2019/11/10 14:00 | Volfson, David v Gonzalez, Javier (Chl) | 7-5,6-3 |
| ITF M15 Cancun | 2019/11/06 20:30 | Gonzalez, Javier (Chl) v Nick Chappell | 3-6,3-6 |
| ITF M15 Cancun | 2019/11/05 15:50 | Gonzalez, Javier (Chl) v Reyna, Ricardo | 6-0,6-2 |
| ITF M15 Cancun | 2019/11/04 16:00 | Barros, Emmanuel v Gonzalez, Javier (Chl) | 1-6,2-6 |