| ITF M25 Rosario | 06/26 13:00 | 62 | Luis Britto v Grandon Diaz, Cristobal | 6-2,6-4 | |
| ITF Bolivia F1 | 11/08 15:30 | 25 | Grandon Diaz, Cristobal v Zukas, Matias | 4-6,1-6 | |
| Challenger Santiago 2 Qual | 10/15 13:25 | 45 | Grandon Diaz, Cristobal v Kohl, Cristopher | Retired | |
| Meerbusch, Allemagne, Qualifications | 08/13 11:30 | 45 | Serrano, Sebastian v Grandon Diaz, Cristobal | 2-6,6-2,6-3 | |
| Tunisia F15, Singles Qualifying | 04/20 09:00 | 25 | Grandon Diaz, Cristobal v Musialek, Alexis | 2-6,0-6 | |
| ITF Argentina F3 | 03/13 15:30 | 62 | Betella, Luciano v Grandon Diaz, Cristobal | 6-3,6-2 | |
| ITF Argentina F3 | 03/12 16:30 | 62 | Grandon Diaz, Cristobal v Orradre, Brian | 6-4,6-1 | |
| Challenger Santiago 2 Qual | 03/05 15:55 | 45 | Pedro Sakamoto v Grandon Diaz, Cristobal | 6-1,6-3 | |
| ITF Tunisia F8 | 03/01 12:30 | 25 | Grandon Diaz, Cristobal v Ahouda, Amine | 4-6,0-6 | |
| ITF Tunisia F7 | 02/22 11:00 | 62 | Ahouda, Amine v Grandon Diaz, Cristobal | 6-2,6-2 | |
| ITF Tunisia F7 | 02/21 11:00 | 62 | Albertoni, Davide v Grandon Diaz, Cristobal | 6-4,1-6,5-7 | |
| Tunisia F6, Singles Qualifying | 02/15 08:30 | 44 | Grandon Diaz, Cristobal v Feitt, Franco | 3-6,6-7 |