Stadium: Centre Court Round: 62
| ITF Women SJD Campos Qual | 2018/03/11 14:00 | Madison Bourguignon v Silva, Maria | 4-6,6-3,6-3 |
| ITF Women Campinas Qual | 2018/03/05 16:45 | Baranano, Paula v Madison Bourguignon | 6-3,6-4 |
| ITF Women Campinas Qual | 2018/03/04 14:00 | Isago, Namie v Madison Bourguignon | 2-6,1-6 |
| ITF Women Sao Paulo | 2018/02/27 14:30 | Audrey Albie v Madison Bourguignon | 7-5,4-6,6-0 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/26 13:30 | Emiliana Arango v Madison Bourguignon | 6-4,6-1 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 13:00 | Madison Bourguignon v Noelia Zeballos | 6-3,6-4 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 12:00 | Galvao Borges, Mariana v Madison Bourguignon | 1-6,0-6 |
| ITF Women Curitiba Qual | 2018/02/18 16:55 | Kukharchuk, Nika v Madison Bourguignon | 6-2,7-6 |
| ITF Women SJD Campos Qual | 2018/03/10 16:00 | Isago, Namie v Valero, Juliana | 0-6,2-6 |
| ITF Women Campinas Qual | 2018/03/05 13:00 | Lopez, Daniela Macarena v Valero, Juliana | 5-7,6-3,7-6 |
| ITF Women Campinas Qual | 2018/03/04 14:00 | Furlaneto, Caroline v Valero, Juliana | 2-6,1-6 |
| ITF Women Campinas Qual | 2018/03/03 15:30 | Valero, Juliana v Abrile, Valentina | 7-5,6-3 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 14:30 | Gabriela Ce v Valero, Juliana | 6-0,6-1 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 15:30 | Wu, Pamela v Valero, Juliana | 2-6,1-6 |
| Fed Cup, Groupe Mondial | 2018/02/10 17:00 | Valero, Juliana v Paula Ormaechea | 1-6,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/28 07:30 | Vajdova, Natalia v Valero, Juliana | 6-2,6-2 |