Stadium: Court 1 Round: 27
| ITF Women Villa del Dique | 2018/04/25 12:30 | Julieta Lara Estable v Gatica, Barbara | 6-3,6-7,2-6 |
| Campinas, Singles W-WITF-BRA-03A | 2018/03/07 14:00 | Gatica, Barbara v Julieta Lara Estable | 4-6,6-3,6-4 |
| ITF Women Luque | 2018/09/06 14:15 | Gatica, Barbara v Jazmin Ortenzi | 6-1,3-6,7-5 |
| ITF Women Luque | 2018/09/04 13:30 | Gatica, Barbara v Haley Giavara | 6-4,6-3 |
| ITF Women Asuncion | 2018/08/30 22:15 | Morales, Melissa v Gatica, Barbara | 6-1,6-1 |
| ITF Women Asuncion | 2018/08/29 22:50 | Doldan, Susan v Gatica, Barbara | 4-6,6-7 |
| ITF Women Asuncion | 2018/08/27 18:00 | Rebeca Pereira v Gatica, Barbara | 3-6,4-6 |
| ITF Women Lambare | 2018/08/22 14:00 | Jazmin Ortenzi v Gatica, Barbara | 6-1,6-2 |
| ITF Women Lambare | 2018/08/21 17:35 | Wu, Pamela v Gatica, Barbara | 1-6,3-6 |
| ITF Women Guayaquil | 2018/08/18 16:00 | Brito, Fernanda v Gatica, Barbara | 6-2,6-2 |
| ITF Women Luque | 2018/09/06 14:15 | Drozd Pereira, Erika v Julieta Lara Estable | 4-6,5-7 |
| ITF Women Luque | 2018/09/04 18:15 | Julieta Lara Estable v Rebeca Pereira | 6-0,6-1 |
| ITF Women Asuncion | 2018/08/28 18:00 | Julieta Lara Estable v Martini, Raquel | 6-1,6-2 |
| ITF Women Lambare | 2018/08/22 14:00 | Julieta Lara Estable v Weedon, Kirsten-Andrea | 2-6,1-6 |
| ITF Women Lambare | 2018/08/20 14:00 | Castellano, Sara v Julieta Lara Estable | 6-7,7-5,3-6 |
| ITF Women Villa del Dique | 2018/04/25 12:30 | Julieta Lara Estable v Gatica, Barbara | 6-3,6-7,2-6 |
| ITF Women Villa del Dique | 2018/04/24 13:55 | Tomita, Giovanna v Julieta Lara Estable | 3-6,4-6 |
| ITF Women Villa Dolores | 2018/04/18 14:20 | Julieta Lara Estable v Kurata, Nathaly | 1-6,1-6 |