Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF Women Lubbock | 2018/09/15 14:00 | Maria Jose Portillo Ramirez v Schaefer, Dominique | 6-7,5-7 |
| Arcadia, Singles Qualifying W-ITF-USA-07A | 2019/03/12 20:50 | Lee, Sarah v Schaefer, Dominique | 6-1,6-2 |
| ITF Women Norman | 2018/11/10 15:30 | Schaefer, Dominique v Davtyan, Marina | 4-6,6-4,5-7 |
| ITF Women Lawrence | 2018/11/03 20:00 | Schaefer, Dominique v Caty McNally | 1-6,2-6 |
| ITF Women Stockton | 2018/09/30 22:05 | Schaefer, Dominique v Goncalves, Paula Cristina | 4-6,0-6 |
| Templeton, Singles W-WITF-USA-32A | 2018/09/23 20:40 | Schaefer, Dominique v Moore, Tara | 4-6,7-6,1-6 |
| ITF Women Lubbock | 2018/09/16 14:00 | Douglas, Ellie v Schaefer, Dominique | 6-2,5-7,6-4 |
| ITF Women Lubbock | 2018/09/15 14:00 | Maria Jose Portillo Ramirez v Schaefer, Dominique | 6-7,5-7 |
| ITF Women Fort Worth | 2018/08/04 16:45 | Maria Mateas v Schaefer, Dominique | 6-0,6-3 |
| ITF W15 Cancun | 2019/03/12 15:55 | Maria Jose Portillo Ramirez v Lea Ma | 2-6,4-6 |
| Irapuato, Singles W-ITF-MEX-02A | 2019/03/04 19:30 | Andrea Gamiz v Maria Jose Portillo Ramirez | 6-2,7-5 |
| Acapulco, Mexico | 2019/02/23 23:40 | Conny Perrin v Maria Jose Portillo Ramirez | 6-1,6-1 |
| Fed Cup, Groupe Mondial | 2019/02/09 15:00 | Maria Jose Portillo Ramirez v Guarachi Mathison, Alexa | 3-6,5-7 |
| ITF Women Norman | 2018/11/11 16:00 | Maria Jose Portillo Ramirez v Tiphanie Lemaitre | 6-7,6-1,2-6 |
| ITF Women Norman | 2018/11/10 18:30 | Maria Jose Portillo Ramirez v Holly Hutchinson | 6-2,6-1 |
| ITF Women Toronto | 2018/10/28 14:00 | Kissell, Joelle v Maria Jose Portillo Ramirez | 6-1,6-2 |
| ITF Women Toronto | 2018/10/27 15:50 | Maria Jose Portillo Ramirez v Carrington, Safiya | 5-7,7-6,7-5 |