Stadium: Court 14 Round: 54 Ground: Clay
| ITF W15 Dijon | 2021/09/12 12:40 | Laure Razet v Mariana Galvao Borges | 6-1,6-0 |
| ITF W60 Montreux | 2021/09/06 15:25 | Angelina Gabueva v Mariana Galvao Borges | 6-0,6-1 |
| ITF W60 Collonge-Bellerive | 2021/08/30 14:55 | Viktoria Morvayova v Mariana Galvao Borges | 6-0,6-1 |
| ITF W25 Ourense | 2021/08/15 16:00 | Sowjanya Bavisetti v Mariana Galvao Borges | 6-0,6-0 |
| ITF W15 Amarante | 2021/07/19 11:00 | Rita Colyer v Mariana Galvao Borges | 6-0,6-1 |
| ITF W15 Almada | 2021/07/11 12:00 | Mariana Galvao Borges v Ines Oliveira | 0-6,1-6 |
| ITF W25 Lisbon | 2021/07/04 13:30 | Mariana Galvao Borges v Sabine Rutlauka | 0-6,1-6 |
| ITF W25 Montemor-O-Novo | 2021/06/06 13:30 | Debora Madile v Mariana Galvao Borges | 6-0,7-5 |