Stadium: Stadium Round: 29
| ITF Women Pelham Qual | 2018/04/09 15:00 | Maria Jose Portillo Ramirez v Villarreal, Andrea Renee | 6-2,3-6,6-7 |
| ITF Women Tacarigua | 2018/05/11 17:00 | Maria Jose Portillo Ramirez v Csilla Fodor | 6-7,6-0,7-6 |
| ITF Women Tacarigua | 2018/05/10 15:00 | Emily Appleton v Maria Jose Portillo Ramirez | 4-6,4-6 |
| ITF Women Tacarigua | 2018/05/09 18:30 | Maria Jose Portillo Ramirez v Leduc, Catherine | 6-4,6-2 |
| ITF Women Tacarigua | 2018/05/07 14:00 | Maria Jose Portillo Ramirez v Wijesundera, Rushri | 6-2,7-6 |
| ITF Women Pelham Qual | 2018/04/09 15:00 | Maria Jose Portillo Ramirez v Villarreal, Andrea Renee | 6-2,3-6,6-7 |
| ITF Women Pelham Qual | 2018/04/08 15:00 | Johns, Charity v Maria Jose Portillo Ramirez | 0-6,0-6 |
| Irapuato, Singles W-WITF-MEX-01A | 2018/03/13 22:20 | Maria Jose Portillo Ramirez v Sanchez, Maria | 1-6,1-6 |
| ITF Women Campinas Qual | 2018/03/05 14:50 | Nemtsova, Stephanie v Maria Jose Portillo Ramirez | 6-2,6-3 |
| ITF Women Tacarigua | 2018/05/11 20:20 | Brodsky, Gail v Villarreal, Andrea Renee | 5-7,6-7 |
| ITF Women Tacarigua | 2018/05/10 15:00 | Villarreal, Andrea Renee v Weedon, Kirsten-Andrea | 6-2,6-3 |
| ITF Women Tacarigua | 2018/05/09 14:00 | Villarreal, Andrea Renee v Pitak, Katarzyna | 6-1,6-1 |
| ITF Women Pelham Qual | 2018/04/10 15:55 | Iga Swiatek v Villarreal, Andrea Renee | 6-0,6-0 |
| ITF Women Pelham Qual | 2018/04/09 15:00 | Maria Jose Portillo Ramirez v Villarreal, Andrea Renee | 6-2,3-6,6-7 |
| ITF Women Pelham Qual | 2018/04/08 15:00 | Koster, Leila v Villarreal, Andrea Renee | 0-6,1-6 |
| WTA Monterrey Qual | 2018/03/31 20:25 | Kato, Miyu v Villarreal, Andrea Renee | 6-2,6-3 |
| Irapuato, Singles W-WITF-MEX-01A | 2018/03/13 19:00 | Cako, Jacqueline v Villarreal, Andrea Renee | 6-3,3-6,6-1 |