Stadium: Court 1 Round: 25 Ground: Clay
| ITF W15 Erwitte | 2021/08/17 11:00 | Sofia Costoulas v Carolina Kuhl | 6-0,4-6,4-6 |
| ITF W25 Koksijde | 2021/08/10 13:40 | Angela Fita Boluda v Sofia Costoulas | 6-3,6-2 |
| ITF W25 Denain | 2021/06/16 08:00 | Dalila Spiteri v Sofia Costoulas | 6-2,6-1 |
| ITF W15 Antalya | 2021/03/17 13:10 | Polina Leykina v Sofia Costoulas | 4-6,6-3,6-3 |
| ITF W15 Antalya | 2021/03/10 07:00 | Johana Markova v Sofia Costoulas | 6-2,0-6,6-4 |
| ITF W15 Antalya | 2021/03/04 09:10 | Sofia Costoulas v Nuria Brancaccio | 0-6,2-6 |
| ITF W15 Antalya | 2021/03/03 10:05 | Dea Herdzelas v Sofia Costoulas | 6-2,3-6,1-6 |
| ITF W15 Sharm El Sheikh | 2021/02/11 10:30 | Sofia Costoulas v Nefisa Berberovic | 2-6,2-6 |
| ITF W60 San Bartolome De Tirajana | 2021/08/18 08:30 | Carlota Martinez Cirez v Cristiana Ferrando | 4-6,2-6 |
| ITF W25 Radom | 2021/08/12 09:55 | Lucrezia Stefanini v Carlota Martinez Cirez | 6-1,6-3 |
| ITF W25 Radom | 2021/08/11 09:35 | Carlota Martinez Cirez v Mana Kawamura | 7-6,7-5 |
| ITF W25 Radom | 2021/08/09 13:15 | Aleksandra Julia Jelen v Carlota Martinez Cirez | 1-6,1-6 |
| ITF W25 Radom | 2021/08/09 09:40 | Carlota Martinez Cirez v Sapfo Sakellaridi | 6-3,7-5 |
| ITF W25 Radom | 2021/08/08 08:00 | Carlota Martinez Cirez v Noa Liauw A Fong | 6-3,6-3 |
| ITF W25 Pescara | 2021/08/01 11:00 | Julia Riera v Carlota Martinez Cirez | 4-6,6-3,10-3 |
| ITF W25 Kyiv | 2021/07/22 07:00 | Carole Monnet v Carlota Martinez Cirez | 7-6,6-2 |