Stadium: Court Central Round: 25 Ground: Hardcourt outdoor
| ITF W25 Leiria | 2021/09/06 12:55 | Ana Filipa Santos v Juliette Mazzoni | 6-2,6-1 |
| ITF W15 Almada | 2021/07/12 10:30 | Ana Filipa Santos v Laure Line Glaude | 3-6,2-6 |
| ITF W15 Almada | 2021/07/11 14:00 | Ana Filipa Santos v Barbara Balancho | 7-5,6-0 |
| ITF W25 Figueira Da Foz | 2021/06/14 15:15 | Barbara Gatica v Ana Filipa Santos | 6-2,6-1 |
| ITF W25 Montemor-O-Novo | 2021/06/08 10:30 | Ana Filipa Santos v Eri Hozumi | 4-6,1-6 |
| ITF W15 Sibenik | 2021/05/24 11:55 | Ena Babic v Ana Filipa Santos | 6-4,6-2 |
| ITF W15 Sibenik | 2021/05/17 11:00 | Ana Filipa Santos v Leolia Jeanjean | 1-6,0-6 |
| ITF W15 Sibenik | 2021/05/16 10:00 | Ana Filipa Santos v Ayline Esina Samardzic | 7-5,6-0 |
| ITF W25 Bydgoszcz | 2021/08/03 08:00 | Hiroko Kuwata v Nastasja Schunk | 0-6,4-6 |
| ITF W25 Bydgoszcz | 2021/08/02 11:40 | Hiroko Kuwata v Dariia Monakhova | 6-1,6-3 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 13:20 | Andreea Prisacariu v Hiroko Kuwata | 6-1,6-1 |
| ITF W60 Olomouc | 2021/07/19 13:05 | Lucie Havlickova v Hiroko Kuwata | 6-2,6-2 |
| ITF W60 Olomouc | 2021/07/18 08:00 | Anna Ozerova v Hiroko Kuwata | 2-6,0-6 |
| ITF W60 Nur-Sultan | 2021/07/13 06:50 | Hiroko Kuwata v Anna Kubareva | 6-1,2-6,2-6 |
| ITF W25 Nur-Sultan | 2021/07/07 06:10 | Sabina Sharipova v Hiroko Kuwata | 6-1,6-2 |
| ITF W25 Palma del Rio | 2021/06/29 20:15 | Hiroko Kuwata v Valeria Savinykh | 1-6,2-6 |