Stadium: Court 11 Round: 27
| ITF Women SJD Campos Qual | 2018/03/15 14:00 | Brito, Fernanda v Schaefer, Dominique | 1-6,5-7 |
| ITF Women SJD Campos | 2018/03/14 14:00 | Schaefer, Dominique v Piai, Eduarda | 6-2,7-6 |
| Campinas, Singles W-WITF-BRA-03A | 2018/03/08 15:25 | Schaefer, Dominique v Piai, Eduarda | 3-6,6-2,4-6 |
| Campinas, Singles W-WITF-BRA-03A | 2018/03/07 14:00 | Chieh-Yu Hsu v Schaefer, Dominique | 1-6,3-6 |
| ITF Women Campinas Qual | 2018/03/05 18:35 | Schaefer, Dominique v Victoria Ariadna Beccio | 6-1,6-0 |
| ITF Women Campinas Qual | 2018/03/04 14:00 | Schaefer, Dominique v Kokeladze, Kamilla | 6-0,6-1 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 12:00 | Schaefer, Dominique v Mirjam Bjorklund | 3-6,6-7 |
| Surprise, Singles Qualifying W-WITF-USA-05A | 2018/02/11 17:00 | Schaefer, Dominique v Caroline Werner | 4-6,0-6 |
| ITF Women SJD Campos | 2018/03/15 17:30 | Okuda, Akiko v Petit, Stephanie Mariel | 1-6,2-6 |
| ITF Women SJD Campos | 2018/03/14 22:30 | Figueiredo, Marina v Petit, Stephanie Mariel | 2-6,1-6 |
| Campinas, Singles W-WITF-BRA-03A | 2018/03/06 14:00 | Victoria Bosio v Petit, Stephanie Mariel | 6-4,6-3 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/26 16:25 | Gabriela Ce v Petit, Stephanie Mariel | 6-4,6-1 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/25 14:30 | Guimaraes Bueno, Flavia v Petit, Stephanie Mariel | 3-6,2-6 |
| Sao Paulo, Singles Qualifying W-WITF-BRA-02A | 2018/02/24 15:30 | Ferreira, Nicolly v Petit, Stephanie Mariel | 0-6,1-6 |
| Fed Cup, Groupe Mondial | 2018/02/10 18:30 | Maria Paulina Perez Garcia v Petit, Stephanie Mariel | 4-6,4-6 |
| ITF Women Santa Cruz | 2017/12/14 21:30 | Kurata, Nathaly v Petit, Stephanie Mariel | 2-6,6-4,7-5 |