Stadium: Court 9 Round: 44 Ground: Clay
| ITF W15 Haren | 2019/08/26 09:00 | Julia Mikulski v Marcela-Guimaraes Bueno | 6-1,3-6,10-5 |
| ITF W15 Bucaramanga | 2019/04/24 16:10 | Marcela-Guimaraes Bueno v Antonia Samudio | 3-6,4-6 |
| ITF W15 Guayaquil | 2019/04/18 17:05 | Yuliana Lizarazo v Marcela-Guimaraes Bueno | 6-0,6-0 |
| ITF W15 Guayaquil | 2019/04/17 16:00 | Arantxa Sanchez v Marcela-Guimaraes Bueno | 0-6,2-6 |
| ITF W25 Campinas | 2019/03/25 14:30 | Irene Burillo Escorihuela v Marcela-Guimaraes Bueno | 6-0,6-1 |
| ITF W25 Sao Paulo | 2019/03/11 18:00 | Marcela-Guimaraes Bueno v Maria F Herazo Gonzalez | 3-6,0-6 |
| ITF Women Nules | 2018/11/20 09:00 | Marcela-Guimaraes Bueno v Nikol Dobrilova | 0-6,0-6 |
| ITF Women Nules | 2018/11/17 11:00 | Marcela-Guimaraes Bueno v Naroa Larrinaga | 6-4,2-6,6-3 |