Stadium: Court 9 Round: 25 Ground: Clay
| ITF W15 Buenos Aires | 2019/09/15 15:00 | Eduarda Piai v Guillermina Naya | 2-6,2-6 |
| ITF W15 Buenos Aires | 2019/09/15 15:00 | Eduarda Piai v Guillermina Naya | 2-6,2-6 |
| ITF W15 Buenos Aires | 2019/09/14 15:00 | Jazmin Ortenzi v Guillermina Naya | 6-7,6-7 |
| ITF W15 Buenos Aires | 2019/09/13 14:30 | Guillermina Naya v Thaisa Grana Pedretti | 6-4,6-4 |
| ITF W15 Buenos Aires | 2019/09/12 12:00 | Julieta Lara Estable v Guillermina Naya | 5-7,3-6 |
| ITF W15 Buenos Aires | 2019/09/11 12:00 | Camila A Neyra v Guillermina Naya | 2-6,2-6 |
| 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 W15 Buenos Aires | 2019/09/15 15:00 | Eduarda Piai v Guillermina Naya | 2-6,2-6 |
| ITF W15 Buenos Aires | 2019/09/14 17:35 | Eduarda Piai v Solana Sierra | 2-6,6-4,6-3 |
| ITF W15 Buenos Aires | 2019/09/13 13:00 | Candela Bugnon v Eduarda Piai | 3-6,3-6 |
| ITF W15 Buenos Aires | 2019/09/12 12:00 | Eduarda Piai v Lucia Zelenka | 6-1,6-4 |
| ITF W15 Buenos Aires | 2019/09/10 15:00 | Antonia Samudio v Eduarda Piai | 1-6,4-6 |
| ITF W25 Guayaquil | 2019/08/21 20:30 | Marcela Zacarias v Eduarda Piai | 6-4,6-4 |
| ITF W25 Guayaquil | 2019/08/19 17:10 | Eduarda Piai v Laura Ashley | 6-2,6-2 |
| ITF W25 Guayaquil | 2019/08/14 15:00 | Renata Zarazua v Eduarda Piai | 6-3,6-2 |