Stadium: Court 6 Round: 54 Ground: Clay
| ITF Women Santiago | 2017/12/05 14:00 | Nathaly Kurata v Guillermina Naya | 3-6,6-4,6-2 |
| ITF Women Campos Do Jordao | 2017/07/28 14:00 | Guillermina Naya v Nathaly Kurata | 5-7,1-6 |
| ITF Women Campos Do Jordao | 2017/07/14 14:00 | Guillermina Naya v Nathaly Kurata | 7-6,6-3 |
| ITF W60 Asuncion | 2019/10/28 15:50 | Cindy Burger v Guillermina Naya | 6-3,5-7,6-10 |
| ITF W15 Buenos Aires | 2019/10/13 17:00 | Jazmin Ortenzi v Guillermina Naya | 3-6,5-7 |
| ITF W15 Buenos Aires | 2019/10/13 13:30 | Guillermina Naya v Eduarda Piai | 6-3,6-0 |
| ITF W15 Buenos Aires | 2019/10/11 19:30 | Guillermina Naya v Eugenia Ganga | 6-2,6-3 |
| ITF W15 Buenos Aires | 2019/10/10 13:00 | Guillermina Naya v Maria J Amicuzi | 6-2,6-4 |
| ITF W15 Buenos Aires | 2019/10/09 18:25 | Guillermina Naya v Rocio D Merlo | 6-0,6-2 |
| ITF W15 Buenos Aires | 2019/09/21 14:00 | Julieta Lara Estable v Guillermina Naya | 4-6,6-4,6-1 |
| ITF W15 Buenos Aires | 2019/09/20 15:00 | Alexa Pitt v Guillermina Naya | 6-7,4-6 |
| ITF W60 Asuncion | 2019/10/28 16:50 | Heydi Doldan v Nathaly Kurata | 2-6,4-6 |
| ITF W25 Cucuta | 2019/10/23 17:15 | Barbara Gatica v Nathaly Kurata | 6-1,6-4 |
| ITF W25 Cucuta | 2019/10/22 16:00 | Nathaly Kurata v Ana Maria Becerra | 6-1,6-1 |
| ITF W15 Sao Paulo | 2019/09/28 16:35 | Carolina Alves v Nathaly Kurata | 6-3,6-1 |
| ITF W15 Sao Paulo | 2019/09/27 15:35 | Nathaly Kurata v Mell E R Gonzalez | 7-6,6-2 |
| ITF W15 Sao Paulo | 2019/09/26 15:40 | Nathaly Kurata v Rebeca Pereira | 6-3,6-1 |
| ITF W15 Sao Paulo | 2019/09/25 15:35 | Nathaly Kurata v Julia Konishi Camargo Silva | 6-3,6-1 |
| ITF W25 Guayaquil | 2019/08/21 15:00 | Charlotte Roemer v Nathaly Kurata | 6-0,6-1 |