Stadium: Estadio 2 Round: 25 Ground: Clay
| ITF W25 Rio do Sul | 2021/10/22 11:50 | Panna Udvardy v Barbara Gatica | 6-0,3-6,6-4 |
| ITF W25 Rio do Sul | 2021/10/21 11:45 | Sofia Da Cruz Mendonca v Barbara Gatica | 1-6,3-6 |
| ITF W25 Rio do Sul | 2021/10/19 12:00 | Fernanda Astete v Barbara Gatica | 2-6,0-6 |
| WTA Chicago | 2021/09/25 17:25 | Barbara Gatica v Mariam Bolkvadze | 2-6,1-6 |
| WTA Columbus | 2021/09/18 18:55 | Barbara Gatica v Dalila Jakupovic | 0-6,2-6 |
| WTA Chicago Qual | 2021/08/21 16:00 | Clara Burel v Barbara Gatica | 6-2,4-6,7-5 |
| ITF W60 San Bartolome De Tirajana | 2021/08/15 13:35 | Barbara Gatica v Nicole Fossa Huergo | 3-6,6-1,7-10 |
| ITF W60 San Bartolome De Tirajana | 2021/08/12 11:25 | Barbara Gatica v Aleksandra Krunic | 3-6,6-2,3-6 |
| ITF W25 Guayaquil | 2021/10/31 15:00 | Katharina Gerlach v Laura Pigossi | 0-6,2-6 |
| ITF W25 Guayaquil | 2021/10/30 16:40 | Katharina Gerlach v Carolina Alves | 5-7,6-4,6-4 |
| ITF W25 Guayaquil | 2021/10/29 16:40 | Katharina Gerlach v Victoria Rodriguez | 6-3,6-1 |
| ITF W25 Guayaquil | 2021/10/28 19:05 | Katharina Gerlach v Brittany Collens | 6-0,6-1 |
| ITF W25 Guayaquil | 2021/10/27 20:45 | Katharina Gerlach v Alica Rusova | 6-1,6-0 |
| ITF W25 Rio do Sul | 2021/10/22 11:50 | Katharina Gerlach v Carolina Alves | 6-7,1-6 |
| ITF W25 Rio do Sul | 2021/10/21 13:25 | Katharina Gerlach v Luisa Meyer Auf Der Heide | 6-3,7-5 |
| ITF W25 Rio do Sul | 2021/10/20 12:00 | Katharina Gerlach v Miriana Tona | 6-4,6-1 |