Stadium: Court 14 Round: 26 Ground: Clay
| ITF W15 Castellon | 2021/11/03 13:20 | Esther L Alcaraz v Natalie Augustinova | 6-1,6-3 |
| ITF W15 Castellon | 2021/11/02 10:00 | Meritxell Boix Molla v Esther L Alcaraz | 3-6,2-6 |
| ITF W15 Castellon | 2021/11/01 12:30 | Esther L Alcaraz v Celine Simunyu | 6-3,7-5 |
| ITF W25 SM de Montbui | 2021/05/24 12:00 | Flavie Brugnone v Esther L Alcaraz | 6-3,2-6,10-8 |
| ITF W25 Platja D’Aro | 2021/05/16 07:30 | Riya Bhatia v Esther L Alcaraz | 6-1,6-3 |
| ITF Women Castellon | 2020/11/01 13:00 | Esther L Alcaraz v Marta Custic | 2-6,2-6 |
| ITF W15 Platja D'Aro | 2020/10/27 09:00 | Ekaterina Vishnevskaya v Esther L Alcaraz | 3-6,6-3,10-6 |
| ITF W15 Platja D'Aro | 2020/10/26 10:00 | Esther L Alcaraz v Maria Lota Kaul | 6-2,6-4 |
| ITF W15 Castellon | 2021/11/03 14:30 | Bianca Behulova v Sapfo Sakellaridi | 5-7,3-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/31 09:30 | Sapfo Sakellaridi v Zuzana Zlochova | 4-6,6-4,5-0 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/30 18:00 | Sapfo Sakellaridi v Nora Ayala Serra | 6-0,6-1 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/29 10:00 | Sapfo Sakellaridi v Judit Hernandez Miranda | 6-2,6-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/27 07:00 | Sapfo Sakellaridi v Nina Ugrelidze | 6-0,5-2 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/26 13:30 | Sapfo Sakellaridi v Esther Lopez | 6-2,5-0 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/25 10:00 | Maja Radenkovic v Sapfo Sakellaridi | 3-6,5-7 |
| ITF W25 Seville | 2021/10/18 10:50 | Andreea Amalia Rosca v Sapfo Sakellaridi | 6-2,6-0 |