Round: 45 Ground: Clay
| ITF Brazil F2 | 2017/11/11 16:00 | Luis Britto v Joao Giannella | 6-0,6-2 |
| ITF M15 Curitiba | 2019/06/25 14:35 | Oscar Gabriel Ortiz v Joao Giannella | 6-3,6-0 |
| 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 M15 Pretoria | 2019/10/02 10:05 | Luis Britto v Len Schouten | 2-6,0-6 |
| ITF M15 Johannesburg | 2019/09/25 09:25 | Luis Britto v Jordan Hasson | 0-6,3-6 |
| ITF M15 Sao JDR Preto | 2019/06/17 13:30 | Luis Britto v Bruno Stefani Figlio | 3-6,6-7 |
| ITF M15 Tabarka | 2019/06/10 08:00 | Guido Ivan Justo v Luis Britto | 6-1,6-3 |
| ITF M15 Tabarka | 2019/06/03 12:00 | Juan Manuel Cerundolo v Luis Britto | 6-0,6-0 |
| ITF M15 Tabarka | 2019/06/03 08:00 | Artem Zharkov v Luis Britto | 6-4,4-6,6-10 |
| ITF M15 Tabarka | 2019/05/28 08:00 | Luis Britto v Marco Zotti | 4-6,3-6 |
| ITF Dominican Republic F1 | 2018/11/27 15:00 | Luis Britto v Conner Huertas Del Pino | 1-6,2-6 |