Stadium: Cancha 3 Round: 45 Ground: Hardcourt outdoor
| ITF Women Irapuato Qual | 2018/03/11 17:30 | Alexa Guarachi v Romary Cardenas Rifka | 6-1,6-0 |
| 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 |
| ITF Women Vancouver Qual | 2018/08/12 21:30 | Misaki Doi v Alexa Guarachi | 6-1,7-6 |
| WTA Washington Qual | 2018/07/29 20:35 | Harriet Dart v Alexa Guarachi | 6-2,6-2 |
| ITF Women Irapuato Qual | 2018/03/11 17:30 | Alexa Guarachi v Romary Cardenas Rifka | 6-1,6-0 |
| ITF Women Irapuato Qual | 2017/04/09 16:00 | Alexa Ryngler v Romary Cardenas Rifka | 6-1,6-1 |
| ITF Women Irapuato Qual | 2017/04/08 16:30 | Romary Cardenas Rifka v Vivian Mayumi Toma | 6-1,6-1 |