Stadium: Quadra Central Round: 28 Ground: Clay
| ITF Women Villa del Dique | 2018/04/27 15:20 | Barbara Gatica v Thaisa Grana Pedretti | 4-6,3-6 |
| ITF Women Asuncion | 2017/11/02 17:00 | Thaisa Grana Pedretti v Barbara Gatica | 7-6,3-6,6-4 |
| ITF Women Lambare | 2017/10/27 14:00 | Thaisa Grana Pedretti v Barbara Gatica | 6-4,6-3 |
| ITF Women Buenos Aires | 2017/10/12 15:30 | Thaisa Grana Pedretti v Barbara Gatica | 6-2,6-3 |
| ITF Women Pereira | 2016/10/27 15:00 | Thaisa Grana Pedretti v Barbara Gatica | 3-6,2-6 |
| ITF W15 Sao Paulo | 2019/09/27 14:00 | Eugenia Ganga v Thaisa Grana Pedretti | 2-6,4-6 |
| ITF W15 Sao Paulo | 2019/09/26 14:00 | Heydi Doldan v Thaisa Grana Pedretti | 2-6,3-6 |
| ITF W15 Sao Paulo | 2019/09/24 13:00 | Vitoria De Brito Francisco v Thaisa Grana Pedretti | 1-6,0-6 |
| ITF W15 Buenos Aires | 2019/09/21 14:00 | Thaisa Grana Pedretti v Maria Lourdes Carle | 4-6,3-6 |
| ITF W15 Buenos Aires | 2019/09/20 15:00 | Thaisa Grana Pedretti v Maria Paulina Perez Garcia | 6-0,6-4 |
| ITF W15 Buenos Aires | 2019/09/19 13:45 | Thaisa Grana Pedretti v Sofia Luini | 6-1,6-1 |
| ITF W15 Buenos Aires | 2019/09/18 15:05 | Thaisa Grana Pedretti v Julia Riera | 6-0,6-0 |
| ITF W15 Buenos Aires | 2019/09/13 14:30 | Guillermina Naya v Thaisa Grana Pedretti | 6-4,6-4 |
| ITF W15 Sao Paulo | 2019/09/27 14:00 | Romina Ccuno v Barbara Gatica | 0-6,1-6 |
| ITF W15 Sao Paulo | 2019/09/26 16:55 | Ivania Martinich v Barbara Gatica | 5-7,7-5,3-6 |
| ITF W15 Sao Paulo | 2019/09/24 14:05 | Althea Hudson v Barbara Gatica | 2-6,0-6 |
| ITF W25 Guayaquil | 2019/08/21 17:05 | Barbara Gatica v Alexandra Osborne | 4-6,6-3,5-7 |
| ITF W25 Guayaquil | 2019/08/16 16:00 | Katerina Stewart v Barbara Gatica | 6-3,4-6,6-1 |
| ITF W25 Guayaquil | 2019/08/15 17:10 | Emily Fanning v Barbara Gatica | 1-6,4-6 |
| ITF W25 Guayaquil | 2019/08/14 15:00 | Anastasia E Nefedova v Barbara Gatica | 5-7,0-6 |
| ITF W25 Denain | 2019/07/02 08:00 | Barbara Gatica v Katharina Hobgarski | 1-6,2-6 |