Stadium: Court 9 Round: 25 Ground: Clay
| ITF Women Mexico City | 2018/10/30 18:45 | Guillermina Naya v Raphaelle Lacasse | 4-6,7-5,3-6 |
| ITF Women Charleston | 2018/10/01 14:30 | Natasha Subhash v Guillermina Naya | 6-4,6-4 |
| ITF Women Hilton Head | 2018/09/25 14:30 | Guillermina Naya v Michaela Bayerlova | 6-1,2-6,5-7 |
| ITF Women Marbella | 2018/09/04 08:00 | Guillermina Naya v Victoria Mikhaylova | 1-6,3-6 |
| ITF Women Hammamet | 2018/03/15 10:55 | Julia Stamatova v Guillermina Naya | 6-3,7-5 |
| ITF Women Hammamet | 2018/03/13 12:00 | Guillermina Naya v Federica Arcidiacono | 4-6,6-3,6-3 |
| ITF Women Hammamet | 2018/03/07 11:25 | Guillermina Naya v Michele Alexandra Zmau | 0-6,0-6 |
| ITF Women Hammamet | 2018/02/28 11:45 | Nastassja Burnett v Guillermina Naya | 6-7,6-2,6-2 |
| ITF W15 Cancun | 2019/05/22 15:20 | Andrea R Villarreal v Eduarda Piai | 6-4,6-0 |
| ITF W15 Cancun | 2019/05/14 16:10 | Eduarda Piai v Kirsten-Andrea Weedon | 2-6,3-6 |
| ITF W15 Cancun | 2019/05/10 14:00 | Marcela Zacarias v Eduarda Piai | 7-5,6-0 |
| ITF W15 Cancun | 2019/05/09 15:00 | Anna Mamalat v Eduarda Piai | 1-6,4-6 |
| ITF W15 Cancun | 2019/05/07 14:00 | Amber Washington v Eduarda Piai | 6-4,3-6,3-6 |
| ITF W25 Campinas | 2019/03/25 14:30 | Eduarda Piai v Barbara Gatica | 2-6,6-3,6-10 |
| ITF W25 Curitiba | 2019/03/18 18:40 | Eduarda Piai v Gabriela Lee | 3-6,6-3,8-10 |
| ITF W25 Sao Paulo | 2019/03/11 15:00 | Eduarda Piai v Federica Di Sarra | 4-6,4-6 |