Stadion: Court 5 Round: 26
| ITF Damen - Tacarigua | 2018/05/07 14:00 | Maria Jose Portillo Ramirez v Rushri Wijesundera | 6-2,7-6 |
| ITF Damen - Pelham - Qualifikation | 2018/04/09 15:00 | Maria Jose Portillo Ramirez v Andrea R Villarreal | 6-2,3-6,6-7 |
| ITF Damen - Pelham - Qualifikation | 2018/04/08 15:00 | Charity Johns v Maria Jose Portillo Ramirez | 0-6,0-6 |
| ITF Damen - Irapuato | 2018/03/13 22:20 | Maria Jose Portillo Ramirez v Maria Sanchez | 1-6,1-6 |
| ITF Damen - Campinas - Qualifikation | 2018/03/05 14:50 | Stephanie Nemtsova v Maria Jose Portillo Ramirez | 6-2,6-3 |
| ITF Damen - Campinas - Qualifikation | 2018/03/04 14:00 | Marcela-Guimaraes Bueno v Maria Jose Portillo Ramirez | 2-6,1-6 |
| ITF Damen - Campinas - Qualifikation | 2018/03/03 14:00 | Leticia Giudici v Maria Jose Portillo Ramirez | 1-6,1-6 |
| ITF Damen - Sao Paulo - Qualifikation | 2018/02/25 13:00 | Eleni Kordolaimi v Maria Jose Portillo Ramirez | 7-5,6-4 |
| ITF Damen - Tacarigua | 2018/05/07 14:00 | Hailey Wilcox v Catherine Leduc | 2-6,1-6 |
| ITF Damen - Charleston - Qualifikation | 2018/04/29 15:00 | Chanelle Van Nguyen v Catherine Leduc | 6-1,6-1 |
| ITF Damen - Charlottesville - Qualifikation | 2018/04/22 15:55 | Alexandra Mueller v Catherine Leduc | 7-6,6-2 |
| ITF Damen - Pelham - Qualifikation | 2018/04/09 15:00 | Rachel May Pierson v Catherine Leduc | 6-3,4-6,7-6 |
| ITF Damen - Pelham - Qualifikation | 2018/04/08 15:00 | Vivian Mayumi Toma v Catherine Leduc | 0-6,0-6 |
| ITF Damen - Jackson - Qualifikation | 2018/04/02 18:00 | Vania King v Catherine Leduc | 6-3,6-1 |
| ITF Damen - Irapuato - Qualifikation | 2018/03/11 20:30 | Brynn Boren v Catherine Leduc | 6-2,4-6,6-1 |
| ITF Damen - Irapuato - Qualifikation | 2018/03/10 19:00 | Maria Fernanda C Altamirano v Catherine Leduc | 2-6,2-6 |