Stadium: Court V4 Round: 25
| ITF Women Evansville | 2018/07/26 15:40 | Niluka Madurawe v Maria Jose Portillo Ramirez | 6-3,6-4 |
| ITF Women Evansville | 2018/07/24 14:00 | Brianda R Navarro v Maria Jose Portillo Ramirez | 0-6,0-6 |
| ITF Women Gatineau Qual | 2018/07/15 14:00 | Jodie Anna Burrage v Maria Jose Portillo Ramirez | 6-1,6-2 |
| ITF Women Gatineau Qual | 2018/07/14 16:55 | Jada Bui v Maria Jose Portillo Ramirez | 5-7,3-6 |
| 2018 Fed Cup | 2018/06/21 14:00 | Maria Jose Portillo Ramirez v Tangia Riley-Codrington | 6-0,6-0 |
| ITF Women Sumter | 2018/06/13 18:15 | Maria Jose Portillo Ramirez v Alize Lim | 1-6,1-6 |
| ITF Women Sumter Qual | 2018/06/12 13:00 | Maria Jose Portillo Ramirez v Gianna Pielet | 6-2,6-3 |
| ITF Women Sumter Qual | 2018/06/11 13:00 | Maria Jose Portillo Ramirez v Peyton Stearns | 7-6,7-6 |
| ITF Women Granby | 2018/07/24 16:35 | Usue Maitane Arconada v Nagi Hanatani | 6-3,3-6,6-1 |
| ITF Women Granby Qual | 2018/07/23 14:00 | Nadja Gilchrist v Nagi Hanatani | 5-7,1-6 |
| ITF Women Granby Qual | 2018/07/22 19:50 | Catherine Leduc v Nagi Hanatani | 2-6,7-5,2-6 |
| ITF Women Granby Qual | 2018/07/21 13:00 | Alexandra Riley v Nagi Hanatani | 2-6,1-6 |
| ITF Women Gatineau | 2018/07/16 16:50 | Maria Mateas v Nagi Hanatani | 6-0,6-0 |
| ITF Women Gatineau Qual | 2018/07/15 17:00 | Nagi Hanatani v Aiko Yoshitomi | 7-5,6-4 |
| ITF Women Gatineau Qual | 2018/07/15 15:30 | Nagi Hanatani v Aiko Yoshitomi | 7-5,6-4 |
| ITF Women Gatineau Qual | 2018/07/15 00:05 | Nagi Hanatani v Isabelle Boulais | 6-7,6-3,6-3 |