Round: 62 Ground: Clay
| 2018 Fed Cup | 2018/02/10 18:30 | Maria Paulina Perez Garcia v Stephanie Mariel Petit | 4-6,4-6 |
| ITF Women Santa Cruz | 2017/12/14 21:30 | Nathaly Kurata v Stephanie Mariel Petit | 2-6,6-4,7-5 |
| ITF Women Santa Cruz | 2017/12/13 21:30 | Marcela G. Bueno v Stephanie Mariel Petit | 3-6,1-5 |
| ITF Women Santa Cruz | 2017/12/13 21:30 | Marcela-Guimaraes Bueno v Stephanie Mariel Petit | 3-6,1-6 |
| ITF Women Santa Cruz | 2017/12/12 21:30 | Lara Escauriza v Stephanie Mariel Petit | 2-6,4-6 |
| ITF Women Santiago | 2017/12/05 19:05 | Maria F Herazo Gonzalez v Stephanie Mariel Petit | 6-1,6-4 |
| ITF Women Santiago | 2017/11/30 14:30 | Chiara Scholl v Stephanie Mariel Petit | 6-1,6-2 |
| ITF Women Santiago | 2017/11/29 17:50 | Ivania Martinich v Stephanie Mariel Petit | 2-6,0-6 |