Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF W25 SM de Montbui | 2021/05/25 09:00 | Alba R Soiras v Claudia D L H Armenteras | 1-6,6-7 |
| ITF W25 SM de Montbui | 2021/05/24 09:00 | Claudia D L H Armenteras v Valentina Gaggini | 6-2,6-2 |
| ITF W25 SM de Montbui | 2021/05/23 11:00 | Raquel D Teixeira v Claudia D L H Armenteras | 0-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/20 14:00 | Ana L De La Nuez v Claudia D L H Armenteras | 5-7,6-3,7-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/19 10:30 | Claudia D L H Armenteras v Angela Fita Boluda | 2-6,1-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/18 12:30 | Claudia D L H Armenteras v Carlota Martinez Cirez | 5-7,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/16 10:30 | Oksana Selekhmeteva v Claudia D L H Armenteras | 6-2,6-4 |
| ITF W15 Manacor | 2021/01/17 11:00 | Aubane Droguet v Claudia D L H Armenteras | 6-2,4-6,10-8 |
| ITF W15 Manacor | 2021/02/02 11:30 | Iva Primorac v Nahia Berecoechea | 7-5,6-3 |
| ITF W15 Manacor | 2021/02/01 12:30 | Nahia Berecoechea v Lucie Petruzelova | 6-1,6-2 |
| ITF W15 Manacor | 2021/01/31 12:00 | Athina Pitta v Nahia Berecoechea | 1-6,3-6 |
| ITF W15 LPD Gran Canaria | 2020/11/24 10:15 | Ane M D Olmo v Nahia Berecoechea | 6-2,6-2 |
| ITF W15 LPD Gran Canaria | 2020/11/22 09:30 | Andrea S Roque v Nahia Berecoechea | 1-6,0-6 |
| ITF W15 Platja D'Aro | 2020/10/27 09:00 | Nahia Berecoechea v Valeria Koussenkova | 3-6,6-7 |
| ITF W15 Platja D'Aro | 2020/10/26 09:00 | Katriin Saar v Nahia Berecoechea | 6-3,2-6,5-10 |
| ITF W15 Platja D'Aro | 2020/10/25 09:00 | Nahia Berecoechea v Anastasia Veselova | 7-5,1-6,10-8 |