| ITF W25 - Irapuato | 03/08 17:30 | 54 | Maria Jose Portillo Ramirez v Charlotte Chavatipon | 5-7,6-3,6-10 | |
| ITF W25 - Las Vegas | 03/02 18:00 | 54 | Carolina Alves v Maria Jose Portillo Ramirez | 4-6,7-6,10-6 | |
| WTA - Acapulco | 02/23 02:35 | 45 | [120] Francesca Di Lorenzo v Maria Portillo Ramirez [421] | 6-3,6-1 | |
| ITF W25 - Naples | 11/18 14:00 | 44 | Maria Mateas v Maria Jose Portillo Ramirez | 6-4,6-1 | |
| ITF W25 - Naples | 11/17 14:00 | 44 | Maria Jose Portillo Ramirez v Jerricka Boone | 6-3,6-0 | |
| ITF - W25 Orlando | 11/11 15:00 | 54 | Caroline Werner v Maria Jose Portillo Ramirez | 6-4,3-6,10-4 | |
| ITF W15 - Cancun | 11/10 14:00 | 29 | Maria Jose Portillo Ramirez v Tiphanie Fiquet | 6-7,7-5,6-2 | |
| ITF W15 - Cancun | 11/09 14:00 | 28 | Maria Jose Portillo Ramirez v Anastasia Sysoeva | 6-2,6-2 | |
| ITF W15 - Cancun | 11/08 14:00 | 27 | Maria Jose Portillo Ramirez v Laetitia Pulchartova | 4-6,6-4,6-2 | |
| ITF W15 - Cancun | 11/07 14:05 | 26 | Maria Jose Portillo Ramirez v Diana Martynov | Retired | |
| ITF W15 - Cancun | 11/06 18:25 | 25 | Maria Jose Portillo Ramirez v Romary Cardenas Rifka | 6-1,6-4 | |
| ITF W25 - Dallas | 10/23 16:25 | 25 | Ingrid Gamarra Martins v Maria Jose P Ramirez | 6-4,6-4 | |
| ITF W25 - Dallas | 10/22 15:00 | 54 | Maria Jose P Ramirez v Rhiann Newborn | 6-4,6-3 | |
| ITF W25 - Firenze | 10/15 13:55 | 44 | Maria Jose Portillo Ramirez v Andie K. Daniell | 2-6,2-6 | |
| ITF W15 - Lubbock | 09/18 17:25 | 25 | Savannah Broadus v Maria Jose Portillo Ramirez | 6-4,2-6,6-3 | |
| ITF W25 - Redding | 09/11 17:00 | 25 | Peyton Stearns v Maria Jose Portillo Ramirez | 7-6,6-2 | |
| ITF W25 - Redding | 09/10 17:00 | 54 | Maria Jose Portillo Ramirez v Julia Rosenqvist | 3-6,6-2,10-4 | |
| ITF W25 - Redding | 09/09 17:00 | 54 | Maria Jose Portillo Ramirez v Sybille Gauvain | 6-2,1-6,10-8 | |
| ITF W25 - Guayaquil | 08/21 19:30 | 25 | Maria Jose Portillo Ramirez v Katerina Stewart | 6-3,6-7,0-6 | |
| ITF W25 - Guayaquil | 08/15 15:00 | 26 | [463] Maria Jose Portillo Ramirez v Mari Osaka [315] | 3-6,2-6 | |
| ITF W25 - Guayaquil | 08/13 16:20 | 25 | Joselyn M T Albarracin v Maria Jose Portillo Ramirez | 2-6,1-6 | |
| ITF W15 - Cancun | 08/02 13:30 | 27 | Anhzelika Isaeva v Maria Jose Portillo Ramirez | 3-6,6-4,6-3 | |
| ITF W15 - Cancun | 08/01 15:25 | 26 | Yarden Akler v Maria Jose P Ramirez | 1-6,1-6 | |
| ITF W15 - Cancun | 07/30 15:30 | 25 | Koral Koldobski v Maria Jose P Ramirez | 1-6,3-6 | |
| ITF W15 - Cancun | 07/24 13:30 | 25 | Maria Jose Portillo Ramirez v Madison Appel | 2-6,6-1,3-6 | |
| ITF W15 - Cancun | 05/17 13:30 | 27 | Maria Jose P Ramirez v Kirsten-Andrea Weedon | 2-6,2-6 | |
| ITF W15 - Cancun | 05/16 13:30 | 26 | Maria Jose P Ramirez v Dasha Kourkina | Retired | |
| ITF W15 - Cancun | 05/14 13:30 | 25 | Maria Jose P Ramirez v Erika Sandor-Zur | 6-0,6-0 | |
| ITF W15 - Cancun | 05/12 15:00 | 29 | Marcela Zacarias v Maria Jose P Ramirez | 6-3,6-1 | |
| ITF W15 - Cancun | 05/11 14:00 | 28 | Alexandra Vagramov v Maria Jose P Ramirez | 3-6,3-6 |