| ITF - Lousada W15 | 2019/10/30 15:00 | Mariana Campino v Katharina Hering | 1-6,6-7 |
| ITF - Lousada W15 | 2019/10/22 09:00 | Mariana Campino v Almudena S-L Fernandez | 4-6,5-7 |
| ITF - Caldas da Rainha W60 | 2019/09/22 14:30 | Mariana Campino v Iveta Dapkute | 3-6,1-6 |
| ITF W25 Palmela | 2019/07/15 14:00 | Arlinda Rushiti v Mariana Campino | 6-0,7-5 |
| ITF W15 Montemor-O-Novo | 2019/05/29 10:25 | Ines Oliveira v Mariana Campino | 6-1,6-2 |
| ITF W15 Cantanhede | 2019/05/21 09:30 | Mariana Campino v Sofia Milatova | 4-6,6-3,5-7 |
| ITF W15 Cantanhede | 2019/05/20 13:05 | Mariana Campino v Anoushka Wooller | 6-4,7-6 |
| ITF W25 Obidos | 2019/05/15 11:45 | Petia Arshinkova v Mariana Campino | 6-2,6-0 |