Stadium: Cancha 3 Round: 45 Ground: Hardcourt outdoor
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2018/03/11 17:30 | Guarachi Mathison, Alexa v Cardenas Rifka, Romary | 6-1,6-0 |
| WTA Guadalajara | 2019/03/09 18:50 | Xiyu Wang v Guarachi Mathison, Alexa | 6-4,5-7,6-4 |
| Fed Cup, Groupe Mondial | 2019/02/09 15:00 | Maria Jose Portillo Ramirez v Guarachi Mathison, Alexa | 3-6,5-7 |
| Newport Beach, USA | 2019/01/21 18:00 | Guarachi Mathison, Alexa v Katie Volynets | 6-4,4-6,3-6 |
| WTA Auckland | 2018/12/28 21:00 | Perez, Ellen v Guarachi Mathison, Alexa | 6-2,6-4 |
| Houston, USA | 2018/11/10 21:50 | Guarachi Mathison, Alexa v Reka-Luca Jani | 6-4,0-6,0-6 |
| ITF Women Colina | 2018/11/08 23:00 | Guarachi Mathison, Alexa v Paula Ormaechea | 4-6,1-6 |
| ITF Women Colina | 2018/11/07 23:00 | Francesca Jones v Guarachi Mathison, Alexa | 4-6,7-5,2-6 |
| ITF Women Colina | 2018/11/05 15:35 | Piai, Eduarda v Guarachi Mathison, Alexa | 4-6,1-6 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2018/03/11 17:30 | Guarachi Mathison, Alexa v Cardenas Rifka, Romary | 6-1,6-0 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2017/04/09 16:00 | Ryngler, Alexa v Cardenas Rifka, Romary | 6-1,6-1 |
| Irapuato, Singles Qualifying W-WITF-MEX-01A | 2017/04/08 16:30 | Cardenas Rifka, Romary v Vivian Mayumi Toma | 6-1,6-1 |