| 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 |
| ITF W25 Seville | 2021/10/17 12:00 | Luana Plaza Araujo v Sapfo Sakellaridi | 0-6,2-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/10 07:00 | Rosa Vicens Mas v Sapfo Sakellaridi | 6-3,4-6,5-1 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/09 08:30 | Katherine Westbury v Sapfo Sakellaridi | 3-6,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/08 11:00 | Sapfo Sakellaridi v Jordina Cegarra Ramirez | 4-6,2-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/07 11:00 | Sapfo Sakellaridi v Lucia Aranda Arcas | 6-2,6-1 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/06 08:00 | Elizabeth Jurna v Sapfo Sakellaridi | 4-6,1-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/10 08:30 | Esther L Alcaraz v Berta M Avante | 1-6,4-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/09 10:00 | Esther L Alcaraz v Carlota F Carreter | 7-5,5-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/08 12:30 | Laura Garcia v Esther L Alcaraz | 5-7,7-5,3-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/07 09:30 | Silvia Martinez Jimenez v Esther L Alcaraz | 7-6,5-7,6-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/06 08:00 | Ana L De La Nuez v Esther L Alcaraz | 6-2,5-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/04 15:00 | Valeria Koussenkova v Esther L Alcaraz | 0-6,4-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/06/12 08:30 | Esther L Alcaraz v Ania Hertel | 2-6,5-7 |
| UTR Pro Tennis Series Barcelona Women | 2021/06/11 09:30 | Esther L Alcaraz v Nora Niedmers | 6-0,0-0 |