Stadium: Club Campestre Sede Llanogrande Round: 29
| ITF Women Norman | 2018/11/11 16:00 | Maria Jose Portillo Ramirez v Tiphanie Lemaitre | 6-7,6-1,2-6 |
| ITF Women Norman | 2018/11/10 18:30 | Maria Jose Portillo Ramirez v Holly Hutchinson | 6-2,6-1 |
| ITF Women Toronto | 2018/10/28 14:00 | Joelle Kissell v Maria Jose Portillo Ramirez | 6-1,6-2 |
| ITF Women Toronto | 2018/10/27 15:50 | Maria Jose Portillo Ramirez v Safiya Carrington | 5-7,7-6,7-5 |
| ITF Women Lagos | 2018/10/09 10:30 | Conny Perrin v Maria Jose Portillo Ramirez | 6-3,6-2 |
| ITF Women Lagos | 2018/10/03 12:00 | Maria Jose Portillo Ramirez v Victoria Bosio | 6-7,3-6 |
| ITF Women Lagos | 2018/10/01 12:05 | Fiona Codino v Maria Jose Portillo Ramirez | 5-7,6-3,5-7 |
| ITF Women Lubbock | 2018/09/15 14:00 | Maria Jose Portillo Ramirez v Dominique Schaefer | 6-7,5-7 |
| WTA Newport Beach | 2019/01/21 18:00 | Alexa Guarachi v Katie Volynets | 6-4,4-6,3-6 |
| WTA Auckland | 2018/12/28 21:00 | Ellen Perez v Alexa Guarachi | 6-2,6-4 |
| WTA Houston | 2018/11/10 21:50 | Alexa Guarachi v Reka-Luca Jani | 6-4,0-6,0-6 |
| ITF Women Colina | 2018/11/08 23:00 | Alexa Guarachi v Paula Ormaechea | 4-6,1-6 |
| ITF Women Colina | 2018/11/07 23:00 | Francesca Jones v Alexa Guarachi | 4-6,7-5,2-6 |
| ITF Women Colina | 2018/11/05 15:35 | Eduarda Piai v Alexa Guarachi | 4-6,1-6 |
| ITF Women Macon | 2018/10/24 14:00 | Marie Bouzkova v Alexa Guarachi | 7-5,6-2 |
| WTA Chicago | 2018/09/02 15:00 | Alexa Guarachi v Tereza Martincova | 4-6,0-6 |