Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF W60 San Bartolome De Tirajana | 2021/08/10 08:30 | Francisca Jorge v Olga Saez Larra | 6-0,6-2 |
| ITF W60 San Bartolome De Tirajana | 2021/08/09 14:50 | Martina Colmegna v Olga Saez Larra | 1-6,5-7 |
| ITF W60 San Bartolome De Tirajana | 2021/08/08 14:10 | Julieta Lara Estable v Olga Saez Larra | 0-6,4-6 |
| ITF W60 Biarritz | 2021/07/13 09:30 | Olga Saez Larra v Leolia Jeanjean | 1-6,3-6 |
| ITF W60 Biarritz | 2021/07/12 14:25 | Olga Saez Larra v Ines Nicault | 7-5,6-0 |
| ITF W25 Lisbon | 2021/07/06 13:25 | Junri Namigata v Olga Saez Larra | 6-3,6-1 |
| ITF W25 Palma del Rio | 2021/07/02 18:30 | Olga Saez Larra v Lulu Sun | 7-6,5-7,2-6 |
| ITF W25 Palma del Rio | 2021/07/01 19:10 | Na-Lae Han v Olga Saez Larra | 4-6,3-6 |
| ITF W25 Ourense | 2021/08/16 07:55 | Valentina Losciale v Nora Ayala Serra | 4-6,5-7 |
| ITF W25 Ourense | 2021/08/15 08:00 | Nora Ayala Serra v Julita Saner | 7-6,0-6,10-6 |
| ITF W25 SM de Montbui | 2021/05/24 09:00 | Elizabeth Jurna v Nora Ayala Serra | 6-3,6-2 |
| ITF W25 SM de Montbui | 2021/05/23 08:00 | Paola M-M Bautista v Nora Ayala Serra | 1-6,3-6 |
| ITF W25 Platja D’Aro | 2021/05/16 07:30 | Nora Ayala Serra v Valeria Koussenkova | 1-6,5-7 |
| ITF W15 LPD Gran Canaria | 2020/11/22 11:30 | Nora Ayala Serra v Adithya Karunaratne | 2-6,2-6 |
| ITF Women Castellon | 2020/11/01 11:30 | Nora Ayala Serra v Mihaela Djakovic | 0-6,3-6 |
| ITF W15 Platja D'Aro | 2020/10/26 10:00 | Natalia Orlova v Nora Ayala Serra | 6-4,6-3 |