Stadium: Court 5 Round: 62 Ground: Clay
| ITF Women Lousada | 2018/10/28 12:00 | Marcela-Guimaraes Bueno v Katsiaryna Skachkova | 3-6,4-6 |
| ITF Women Lousada | 2018/10/23 14:10 | Marcela-Guimaraes Bueno v Aubane Droguet | 2-6,1-6 |
| ITF Women Lousada | 2018/10/22 09:00 | Marcela-Guimaraes Bueno v Almudena S-L Fernandez | 0-6,0-6 |
| ITF Women Cantanhede | 2018/10/13 10:00 | Marcela-Guimaraes Bueno v Victoria Mikhaylova | 2-6,3-6 |
| ITF Women Obidos | 2018/10/06 13:00 | Marcela-Guimaraes Bueno v Natalia Orlova | 1-6,0-6 |
| ITF Women Buenos Aires | 2018/09/18 17:25 | Maria J Amicuzi v Marcela-Guimaraes Bueno | 6-3,6-4 |
| ITF Women Luque | 2018/09/05 13:00 | Marcela-Guimaraes Bueno v Gabriela Ce | 1-6,0-6 |
| ITF Women Luque | 2018/09/04 12:00 | Alexa Pitt v Marcela-Guimaraes Bueno | 5-7,1-6 |