Stadium: Court 2 Round: 25 Ground: Clay
| ITF - W15 Buenos Aires | 2019/09/13 14:30 | Guillermina Naya v Thaisa Grana Pedretti | 6-4,6-4 |
| ITF - W15 Buenos Aires | 2019/09/12 14:10 | Victoria Ariadna Beccio v Thaisa Grana Pedretti | 1-6,0-6 |
| ITF - W15 Buenos Aires | 2019/09/11 14:10 | Delfina Glorioso v Thaisa Grana Pedretti | 2-6,2-6 |
| ITF W25 - Guayaquil | 2019/08/22 15:00 | Charlotte Roemer v Thaisa Grana Pedretti | 6-1,6-3 |
| ITF W25 - Guayaquil | 2019/08/20 17:30 | Sofia Sewing v Thaisa Grana Pedretti | 2-6,0-6 |
| ITF W15 - Cancun | 2019/08/03 13:30 | Thaisa Grana Pedretti v Anhzelika Isaeva | 6-3,6-1 |
| ITF W15 - Cancun | 2019/08/02 13:30 | Elle Christensen v Thaisa Grana Pedretti | 2-6,0-6 |
| ITF W15 - Cancun | 2019/08/01 18:45 | Natalie Johnson v Thaisa Grana Pedretti | 4-6,6-3,2-6 |
| ITF - W15 Buenos Aires | 2019/09/17 14:00 | Julia Riera v Rocio D Merlo | 6-4,6-1 |
| ITF - W15 Buenos Aires | 2019/09/16 13:00 | Julia Riera v Delfina Glorioso | 5-7,7-5,10-5 |
| ITF - W15 Buenos Aires | 2019/09/11 16:10 | Julieta Lara Estable v Julia Riera | 6-3,3-6,6-1 |
| ITF W15 - Lambaré | 2019/08/22 14:00 | Fernanda Brito v Julia Riera | 6-2,6-1 |
| ITF W15 - Lambaré | 2019/08/20 18:55 | Julia Riera v Heydi Doldan | 6-1,6-0 |
| ITF W15 La Paz | 2019/08/13 15:15 | Antonia Samudio v Julia Riera | 6-0,6-4 |
| ITF W15 Santa Cruz | 2019/08/08 21:00 | Julia Riera v Fiorella D Montano | 1-6,6-7 |
| ITF W15 Santa Cruz | 2019/08/07 21:10 | Vivian Mayumi Toma v Julia Riera | 1-6,4-6 |