Stadium: Quadra 5 Round: 54 Ground: Clay
| ITF M15 Sao JDR Preto | 2019/06/19 14:50 | Andre Miele v Oscar Gabriel Ortiz | 7-5,6-3 |
| ITF M15 Sao JDR Preto | 2019/06/18 12:30 | Joao Hinsching v Oscar Gabriel Ortiz | 6-4,6-4 |
| ITF M15 Buenos Aires | 2019/05/08 17:25 | Gonzalo Villanueva v Oscar Gabriel Ortiz | 6-2,6-3 |
| ITF M15 Buenos Aires | 2019/05/06 17:15 | Maximiliano Estevez v Oscar Gabriel Ortiz | 7-5,3-6,10-4 |
| ITF M15 Buenos Aires | 2019/05/06 13:00 | Oscar Gabriel Ortiz v Pedro Gabriel Rodrigues | 6-4,6-2 |
| ITF M15 Buenos Aires | 2019/04/30 12:00 | Victor Nunez v Oscar Gabriel Ortiz | 6-4,6-3 |
| ITF M15 Buenos Aires | 2019/04/29 12:00 | Oscar Gabriel Ortiz v Pedro Gabriel Rodrigues | 6-2,6-1 |
| ITF M15 Pinamar | 2019/03/21 12:30 | Oscar Gabriel Ortiz v Franco Agamenone | 1-6,0-6 |
| ITF M15 Curitiba | 2019/06/24 18:45 | Felipe Muzzi v Joao Giannella | 3-6,6-7 |
| ITF M15 Sao JDR Preto | 2019/06/18 12:30 | Gabriel Ciro Da Silva v Joao Giannella | 6-1,6-0 |
| ITF M15 Sao JDR Preto | 2019/06/17 13:30 | Victor Bertoldo v Joao Giannella | 2-6,1-6 |
| ITF Brazil F9 | 2018/11/13 12:00 | Joao Giannella v Gustavo Heide | 2-6,2-6 |
| ITF Brazil F8 | 2018/11/04 13:00 | Alex Blumenberg v Joao Giannella | 6-2,6-1 |
| ITF Brazil F7 | 2018/10/29 12:00 | Nicolas Zaidman v Joao Giannella | 7-6,6-0 |
| ITF Brazil F7 | 2018/10/28 15:00 | Joao Giannella v Asdrubal Gobernate | 6-1,4-6,6-3 |
| ITF Brazil F7 | 2018/10/27 14:30 | Joao Giannella v Lucas Gessner | 6-3,6-4 |