Stadium: Court 3 Round: 27
| ITF Women Asuncion | 2018/08/29 18:00 | Brito, Fernanda v Wolf Gasparin, Nathalia | 6-1,6-2 |
| ITF Women Asuncion | 2018/08/28 20:50 | Brito, Fernanda v Tarun, Aimee | 6-0,6-2 |
| ITF Women Lambare | 2018/08/25 14:30 | Brito, Fernanda v Jazmin Ortenzi | 6-3,1-6,6-4 |
| ITF Women Lambare | 2018/08/24 14:00 | Brito, Fernanda v Gabriela Ce | 6-2,6-3 |
| ITF Women Lambare | 2018/08/23 14:00 | Brito, Fernanda v Ganga, Eugenia | 6-3,6-0 |
| ITF Women Lambare | 2018/08/22 16:25 | Brito, Fernanda v Shaulskaya, Anastasia | 6-0,6-1 |
| ITF Women Guayaquil | 2018/08/18 16:00 | Brito, Fernanda v Gatica, Barbara | 6-2,6-2 |
| ITF Women Guayaquil | 2018/08/17 16:00 | Brito, Fernanda v Gabriela Ce | 6-3,7-5 |
| ITF Women Asuncion | 2018/08/29 19:20 | Castellano, Sara v Ganga, Eugenia | 5-7,7-6,6-2 |
| ITF Women Asuncion | 2018/08/27 19:30 | Amicuzi, Maria Jazmin v Castellano, Sara | 3-6,0-6 |
| ITF Women Asuncion | 2018/08/26 14:00 | Castellano, Sara v Haley Giavara | 7-5,7-6 |
| ITF Women Lambare | 2018/08/20 14:00 | Castellano, Sara v Julieta Lara Estable | 6-7,7-5,3-6 |
| ITF Women Lambare | 2018/08/19 15:00 | Molina Portela, Dolores v Castellano, Sara | 4-6,1-6 |
| ITF Women Lambare | 2018/08/18 15:00 | Jones, Alexis v Castellano, Sara | 2-6,0-6 |
| ITF Women Hammamet | 2018/06/14 11:40 | Natalia Siedliska v Castellano, Sara | 6-4,7-5 |
| ITF Women Hammamet | 2018/06/12 12:30 | Castellano, Sara v Maelys Bougrat | 6-7,6-1,6-4 |