stadio: Court 1 Round: 2
| Billie Jean King Cup | 2022/07/26 16:30 | Guillermina Grant v Natalie G E Sanchez | 7-6,6-3 |
| 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 |
| Fed Cup 2019 | 2019/04/19 14:00 | Melissa Morales v Guillermina Grant | 7-5,5-7,6-4 |
| Fed Cup 2019 | 2019/04/18 14:00 | Isid Hernandez v Guillermina Grant | 4-6,1-6 |
| Billie Jean King Cup | 2021/10/30 15:15 | Junmoke James v Dakota Fordham | 4-6,2-6 |
| Billie Jean King Cup | 2021/10/28 15:05 | Kelly Williford v Junmoke James | 6-0,6-2 |
| Billie Jean King Cup | 2021/10/27 15:30 | Kirsten-Andrea Weedon v Junmoke James | 6-3,6-2 |