Stadium: Court 3 Round: 2
| 2017 Fed Cup | 2017/07/22 15:00 | Guillermina Grant v Natalie G E Sanchez | 5-7,6-1,6-7 |
| Billie Jean King Cup | 2022/07/25 15:15 | Guillermina Grant v Hannah Chambers | 6-3,6-3 |
| WTA Montevideo | 2021/11/16 20:15 | Guillermina Grant v Maria Lourdes Carle | 6-7,2-6 |
| Billie Jean King Cup | 2021/06/26 19:00 | Charlotte Roemer v Guillermina Grant | 7-5,3-6,6-3 |
| Billie Jean King Cup | 2021/06/25 15:00 | Sydney-Nicole Clarke v Guillermina Grant | 2-6,3-6 |
| Billie Jean King Cup | 2021/06/24 17:10 | Guillermina Grant v Ariana Rahmanparast | 6-3,6-2 |
| 2019 Fed Cup | 2019/04/19 14:00 | Melissa Morales v Guillermina Grant | 7-5,5-7,6-4 |
| 2019 Fed Cup | 2019/04/18 14:00 | Isid Hernandez v Guillermina Grant | 4-6,1-6 |
| 2019 Fed Cup | 2019/04/17 14:00 | Ana Julissa De Mata v Guillermina Grant | 6-4,1-6,2-6 |
| Billie Jean King Cup | 2021/10/29 15:25 | Natalie G E Sanchez v Gabrielle Leslie | 7-5,7-6 |
| Billie Jean King Cup | 2021/10/28 13:50 | Gabriela C Flores v Natalie G E Sanchez | 6-4,6-4 |
| Billie Jean King Cup | 2021/10/27 15:30 | Paola Bou v Natalie G E Sanchez | 4-6,2-6 |
| 2018 Fed Cup | 2018/07/21 16:05 | Natalie G E Sanchez v Breana Stampfli | 1-6,2-6 |
| 2018 Fed Cup | 2018/07/19 16:30 | Ariana Rahmanparast v Natalie G E Sanchez | 6-4,6-3 |
| 2018 Fed Cup | 2018/07/18 16:35 | Charlotte Roemer v Natalie G E Sanchez | 6-2,6-4 |
| 2017 Fed Cup | 2017/07/22 15:00 | Guillermina Grant v Natalie G E Sanchez | 5-7,6-1,6-7 |
| 2017 Fed Cup | 2017/07/20 15:00 | Monica Matias v Natalie G E Sanchez | 6-3,0-6,6-4 |