| ITF W25 Leiria | 08/31 16:20 | 25 | [457] Maria Jose Portillo Ramirez v Pemra Ozgen [248] | 4-6,1-6 | |
| ITF W25 Leiria | 08/29 10:00 | 54 | Maria Jose Portillo Ramirez v Maria Fernanda Navarro | 6-0,6-2 | |
| ITF W25 Vigo | 08/25 13:50 | 26 | Lucia Cortez Llorca v Maria Jose Portillo Ramirez | 6-3,6-1 | |
| ITF W25 Vigo | 08/24 11:00 | 25 | Chiara Girelli v Maria Jose Portillo Ramirez | 6-4,1-6,1-6 | |
| ITF W25 Figueira Da Foz | 07/21 13:15 | 26 | [443] Kimberly Birrell v Maria Portillo Ramirez [471] | 6-7,6-4,6-3 | |
| ITF W25 Figueira Da Foz | 07/20 10:00 | 25 | Maria Jose Portillo Ramirez v Yvonne Cavalle-Reimers | 7-5,7-5 | |
| ITF W25 Guimaraes | 07/14 12:55 | 26 | Maria Jose Portillo Ramirez v Katarina Jokic | 6-2,6-7,4-6 | |
| ITF W25 Guimaraes | 07/13 11:40 | 25 | [306] En Shuo Liang v Maria Jose Portillo Ramirez [475] | Retired | |
| ITF W25 Corroios-Seixal | 07/03 09:30 | 54 | Maria Jose Portillo Ramirez v Kaylah McPhee | 4-6,3-6 | |
| ITF W25 Porto | 06/28 12:30 | 25 | Ayla Aksu v Maria Jose Portillo Ramirez | 6-3,6-1 | |
| ITF W60 Pelham | 05/17 18:20 | 25 | Maria Jose Portillo Ramirez v Haley Giavara | 6-4,0-6,4-6 | |
| ITF W25 Sarasota | 05/13 16:35 | 27 | [247] Maria Lourdes Carle v Maria Jose Portillo Ramirez [492] | 1-6,6-4,6-0 | |
| ITF W25 Sarasota | 05/12 18:30 | 26 | [492] Maria Jose Portillo Ramirez v Katrina Scott [391] | 6-4,6-3 | |
| ITF W25 Sarasota | 05/10 17:25 | 25 | [492] Maria Jose Portillo Ramirez v Hurricane Tyra Black [472] | Retired | |
| ITF W25 Daytona Beach | 05/06 14:00 | 27 | Maria Jose P Ramirez v Alexa Graham | 1-6,1-6 | |
| ITF W25 Daytona Beach | 05/05 14:00 | 26 | Sayaka Ishil v Maria Jose P Ramirez | 4-6,4-6 | |
| ITF W25 Daytona Beach | 05/04 17:30 | 25 | Maria Jose P Ramirez v Rushri Wijesundera | Retired | |
| ITF W100 Charleston | 04/25 19:50 | 54 | [260] Allie Kiick v Maria Jose P Ramirez [486] | 7-6,6-4 | |
| ITF W25 Orlando | 04/20 14:00 | 25 | Maria Jose Portillo Ramirez v Madison Sieg | 7-6,0-6,3-6 | |
| ITF W100 Palm Harbor | 04/13 16:10 | 25 | [383] Peyton Stearns v Maria Jose Portillo Ramirez [500] | 6-3,6-7,7-5 | |
| ITF W100 Palm Harbor | 04/12 15:50 | 54 | [266] Catherine Harrison v Maria Jose Portillo Ramirez [500] | 2-6,1-6 | |
| ITF W100 Palm Harbor | 04/11 19:40 | 54 | [500] Maria Jose Portillo Ramirez v Tara Moore [387] | 6-3,6-3 | |
| UTR Pro Tennis Series Atlanta Women | 04/03 12:30 | - | Maria Jose Portillo Ramirez v Luciana Perry | 6-0,7-6 | |
| UTR Pro Tennis Series Atlanta Women | 04/02 12:30 | - | Maria Jose Portillo Ramirez v Mai Nguyen | 6-1,6-3 | |
| UTR Pro Tennis Series Atlanta Women | 03/31 18:30 | - | Maria Portillo Ramirez v Jo-Yee Chan | 6-0,6-1 | |
| UTR Pro Tennis Series Atlanta Women | 03/30 15:30 | - | Maria Portillo Ramirez v Berta Bonardi | 6-7,3-6 | |
| UTR Pro Tennis Series Atlanta Women | 03/29 17:48 | - | Maria Portillo Ramirez v Alejandra F Rodriguez | 6-1,2-6,6-4 | |
| UTR Pro Tennis Series Atlanta Women | 03/28 12:30 | - | Maria Portillo Ramirez v Quetzali D V Montesinos | 6-1,6-1 | |
| WTA Monterrey | 02/26 23:05 | 14 | [450] Maria Portillo Ramirez v Hailey Baptiste [131] | 4-6,6-2,3-6 | |
| ITF W25 Cancun | 02/08 15:55 | 44 | [400] Eva Vedder v Maria Jose Portillo Ramirez [456] | 6-3,6-3 |