Stadion: Court 2 Round: 25 Ground: Clay
| ITF Damen - W25 - Guayaquil | 2019/08/15 15:00 | Maria Jose Portillo Ramirez v Mari Osaka | 3-6,2-6 |
| ITF Damen - W25 - Guayaquil | 2019/08/13 16:20 | Joselyn M T Albarracin v Maria Jose Portillo Ramirez | 2-6,1-6 |
| ITF Damen - W15 - Cancun | 2019/08/02 13:30 | Anhzelika Isaeva v Maria Jose Portillo Ramirez | 3-6,6-4,6-3 |
| ITF Damen - W15 - Cancun | 2019/08/01 15:25 | Yarden Akler v Maria Jose Portillo Ramirez | 1-6,1-6 |
| ITF Damen - W15 - Cancun | 2019/07/30 15:30 | Koral Koldobski v Maria Jose Portillo Ramirez | 1-6,3-6 |
| ITF Damen - W15 - Cancun | 2019/07/24 13:30 | Maria Jose Portillo Ramirez v Madison Appel | 2-6,6-1,3-6 |
| ITF Damen - W15 - Cancun | 2019/05/17 13:30 | Maria Jose Portillo Ramirez v Kirsten-Andrea Weedon | 2-6,2-6 |
| ITF Damen - W15 - Cancun | 2019/05/14 13:30 | Maria Jose Portillo Ramirez v Erika Sandor-Zur | 6-0,6-0 |
| ITF Damen - W25 - Guayaquil | 2019/08/18 16:00 | Maria Camila Osorio v Katerina Stewart | 7-5,7-6 |
| ITF Damen - W25 - Guayaquil | 2019/08/17 16:00 | Katerina Stewart v Gabriela Talaba | 6-2,6-1 |
| ITF Damen - W25 - Guayaquil | 2019/08/16 16:00 | Katerina Stewart v Barbara Gatica | 6-3,4-6,6-1 |
| ITF Damen - W25 - Guayaquil | 2019/08/15 15:00 | Chieh-Yu Hsu v Katerina Stewart | 2-6,5-7 |
| ITF Damen - W25 - Guayaquil | 2019/08/13 17:00 | Katerina Stewart v Nathaly Kurata | 6-2,6-2 |
| ITF Damen - W25 - Bethany Beach | 2019/06/07 15:55 | Tess Sugnaux v Katerina Stewart | 6-2,7-6 |
| ITF Damen - W25 - Bethany Beach | 2019/06/06 16:05 | Katharine Fahey v Katerina Stewart | 6-3,3-6,3-6 |
| ITF Damen - W15 - Naples | 2019/05/19 14:30 | Belinda Woolcock v Katerina Stewart | 4-6,3-6 |