Stadium: Central Court Round: 44 Ground: Clay
| ITF W60 Grodzisk Mazowiecki | 2021/07/31 09:00 | Gatica, Barbara v Chloe Paquet | 3-6,3-6 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/30 09:00 | Su Jeong Jang v Gatica, Barbara | 4-6,0-6 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/29 13:25 | Gatica, Barbara v Gabriela Lee | 2-6,6-3,6-3 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/27 10:10 | Jessie Aney v Gatica, Barbara | 6-7,1-6 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/26 12:50 | Katerina Mandelikova v Gatica, Barbara | 5-7,1-6 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 14:45 | Ivana Sebestova v Gatica, Barbara | 3-6,5-7 |
| ITF W60 Olomouc | 2021/07/22 07:45 | Diane Parry v Gatica, Barbara | 3-6,7-5,6-2 |
| ITF W60 Olomouc | 2021/07/21 10:50 | Gatica, Barbara v Susan Bandecchi | 1-6,6-2,7-5 |
| ITF W60 San Bartolome De Tirajana | 2021/08/08 10:00 | de Las Heras Armenteras, Claudia v Olivia Gram | 7-5,3-6,11-9 |
| ITF W15 Santa Margarita de Montbui | 2021/05/26 09:00 | de Las Heras Armenteras, Claudia v Nahia Berecoechea | 2-6,4-6 |
| ITF W25 SM de Montbui | 2021/05/25 09:00 | Retortillo Soiras, Alba v de Las Heras Armenteras, Claudia | 1-6,6-7 |
| ITF W25 SM de Montbui | 2021/05/24 09:00 | de Las Heras Armenteras, Claudia v Gaggini, Valentina | 6-2,6-2 |
| ITF W25 SM de Montbui | 2021/05/23 11:00 | Raquel Ducet Teixeira v de Las Heras Armenteras, Claudia | 0-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/20 14:00 | Lantigua de La Nuez, Ana v de Las Heras Armenteras, Claudia | 5-7,6-3,7-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/19 10:30 | de Las Heras Armenteras, Claudia v Angela Fita Boluda | 2-6,1-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/02/18 12:30 | de Las Heras Armenteras, Claudia v Carlota Martinez Cirez | 5-7,2-5 |