Stadium: Court 8 Round: 25 Ground: Hardcourt indoor
| ITF W15 Lousada | 2019/10/22 09:00 | Campino, Mariana v Almudena S-L Fernandez | 4-6,5-7 |
| ITF W60 Caldas da Rainha | 2019/09/22 14:30 | Campino, Mariana v Iveta Dapkute | 3-6,1-6 |
| Palmela, Singles W-ITF-POR-03A | 2019/07/15 14:00 | Arlinda Rushiti v Campino, Mariana | 6-0,7-5 |
| Montemor-O-Novo, Singles W-ITF-POR-06A | 2019/05/29 10:25 | Oliveira, Ines v Campino, Mariana | 6-1,6-2 |
| ITF W15 Cantanhede | 2019/05/21 09:30 | Campino, Mariana v Sofia Milatova | 4-6,6-3,5-7 |
| ITF W15 Cantanhede | 2019/05/20 13:05 | Campino, Mariana v Wooler, Anoushka | 6-4,7-6 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/15 11:45 | Arshinkova, Petia v Campino, Mariana | 6-2,6-0 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/08 15:20 | Campino, Mariana v Roemer, Charlotte | 1-6,3-6 |
| ITF W15 Lousada | 2019/10/24 12:05 | Hering, Katharina v Orange, Margaux | 6-2,4-6,3-6 |
| ITF W15 Lousada | 2019/10/23 13:20 | Hering, Katharina v Balancho, Barbara | 6-0,6-0 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/26 12:40 | Hering, Katharina v Viller Moller, Hannah | 6-2,5-7,4-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/24 13:20 | Hering, Katharina v Peiretti, Ginevra | 6-3,6-2 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/20 10:50 | Hering, Katharina v Vanhoutte, Chelsea | 4-6,6-3,3-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/19 13:15 | Hering, Katharina v Nieuwboer, Perla | 6-3,6-2 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/17 10:05 | Hering, Katharina v Kalva, Bhuvana | 6-1,6-1 |
| ITF W60 Montreux | 2019/09/02 09:15 | Ochsner, Svenja v Hering, Katharina | 6-3,6-7,10-7 |