Stadium: Centre Court Round: 25 Ground: Clay
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 16:00 | Wolf Gasparin, Nathalia v Piai, Eduarda | 4-6,6-4,3-6 |
| Curitiba, Singles W-WITF-BRA-01A | 2017/02/28 14:00 | Wolf Gasparin, Nathalia v Piai, Eduarda | 4-6,0-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 16:00 | Wolf Gasparin, Nathalia v Piai, Eduarda | 4-6,6-4,3-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 15:30 | Uberoi, Nikita v Wolf Gasparin, Nathalia | 3-6,6-3,1-6 |
| Curitiba, Singles W-WITF-BRA-01A | 2018/02/20 20:15 | Duque Marino, Mariana v Wolf Gasparin, Nathalia | 6-0,6-0 |
| ITF Women Cantanduva | 2017/11/30 15:00 | Wolf Gasparin, Nathalia v Lucero, Carla | 6-3,1-6,2-6 |
| ITF Women Cantanduva | 2017/11/28 17:35 | Galvao Borges, Mariana v Wolf Gasparin, Nathalia | 0-6,0-6 |
| ITF Women Asuncion | 2017/10/28 13:00 | Vazquez, Maria Del Rosario v Wolf Gasparin, Nathalia | 5-7,6-1,6-2 |
| ITF Women Lambare | 2017/10/21 12:00 | Wolf Gasparin, Nathalia v Molina Portela, Dolores | 6-2,6-7,2-6 |
| Campinas, Singles W-WITF-BRA-03A | 2017/03/28 14:00 | Wolf Gasparin, Nathalia v Victoria Bosio | 1-6,2-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/26 14:40 | Stewart, Katerina v Piai, Eduarda | 6-0,6-3 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 16:00 | Wolf Gasparin, Nathalia v Piai, Eduarda | 4-6,6-4,3-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 15:30 | Julia Konishi Camargo Silva v Piai, Eduarda | 1-6,1-6 |
| ITF Women Curitiba Qual | 2018/02/18 18:00 | Elysia Bolton v Piai, Eduarda | 7-5,6-2 |
| ITF Women Curitiba Qual | 2018/02/17 16:00 | Lopez, Daniela Macarena v Piai, Eduarda | 0-6,3-6 |
| ITF Women Santa Cruz | 2017/12/14 00:10 | Kurata, Nathaly v Piai, Eduarda | 6-4,6-1 |
| ITF Women Santa Cruz | 2017/12/11 21:30 | Salinas, Susan v Piai, Eduarda | 0-6,0-6 |
| ITF Women Cantanduva | 2017/12/03 13:00 | Kurata, Nathaly v Piai, Eduarda | 6-1,6-4 |