Stadium: Court 9 Round: 29 Ground: Hardcourt outdoor
| ITF Women Bogota | 2018/12/08 15:00 | Andrea R Villarreal v Allura Zamarripa | 3-6,3-6 |
| ITF Women Bogota | 2018/12/07 15:00 | Andrea R Villarreal v Maria Paulina Perez Garcia | 6-2,7-6 |
| ITF Women Bogota | 2018/12/06 16:20 | Andrea R Villarreal v Mariana Carvajal | 6-0,7-6 |
| ITF Women Bogota | 2018/12/05 14:30 | Andrea R Villarreal v Paula A Coronado | 6-0,6-0 |
| ITF Women Bogota | 2018/12/03 15:30 | Andrea R Villarreal v Gabriela Macias | 7-6,6-3 |
| ITF Women Norman | 2018/11/11 15:00 | Madison Harrison v Andrea R Villarreal | 6-7,7-6,6-1 |
| ITF Women Norman | 2018/11/10 16:00 | Jerricka Boone v Andrea R Villarreal | 1-6,0-6 |
| ITF Women Colina | 2018/11/03 13:30 | Andrea R Villarreal v Jazmin Ortenzi | 7-6,4-6,6-7 |
| ITF Women Fort Worth | 2018/08/03 14:30 | Robin Anderson v Marcela Zacarias | 6-4,2-6,6-4 |
| ITF Women Fort Worth | 2018/08/02 14:00 | McCartney Kessler v Marcela Zacarias | 2-6,7-5,4-6 |
| ITF Women Granby | 2018/07/24 22:00 | Robin Anderson v Marcela Zacarias | 6-4,4-6,6-2 |
| ITF Women Gatineau | 2018/07/17 15:45 | Robin Anderson v Marcela Zacarias | 6-1,6-2 |
| ITF Women Winnipeg | 2018/07/11 15:00 | Sophie Chang v Marcela Zacarias | 6-7,7-5,7-5 |
| ITF Women Winnipeg | 2018/07/09 15:00 | Mai Hontama v Marcela Zacarias | 1-6,0-6 |
| 2018 Fed Cup | 2018/06/23 17:35 | Marcela Zacarias v Anastasia Iamachkine | 7-5,6-1 |
| 2018 Fed Cup | 2018/06/22 16:10 | Marcela Zacarias v Kelly Williford | 6-4,6-1 |