Stadium: Court Central Round: 28 Ground: Clay
| ITF W25 Oeiras | 2021/04/30 13:20 | Malene Helgo v Katharina Gerlach | 2-6,4-6 |
| ITF W25 Oeiras | 2021/04/29 10:00 | Amandine Hesse v Katharina Gerlach | 1-6,2-6 |
| ITF W25 Oeiras | 2021/04/28 12:10 | Ekaterina Makarova v Katharina Gerlach | 4-6,6-2,3-6 |
| WTA Stuttgart | 2021/04/18 12:30 | Stefanie Voegele v Katharina Gerlach | 6-3,6-1 |
| WTA Stuttgart | 2021/04/17 15:55 | Katharina Gerlach v Laura Ioana Paar | 6-3,7-5 |
| WTA Charleston Qual | 2021/04/10 15:00 | Katharina Gerlach v Storm Hunter | 3-6,2-6 |
| WTA Bogota | 2021/04/04 15:00 | Katharina Gerlach v Daniela Seguel | 1-6,1-6 |
| WTA Bogota | 2021/04/03 15:00 | Clara Burel v Katharina Gerlach | 3-6,6-1,4-6 |
| ITF W25 Oeiras | 2021/04/30 09:50 | Maria G Carrasco v Valentini Grammatikopoulou | 6-7,7-6,6-3 |
| ITF W25 Oeiras | 2021/04/29 11:40 | Maria G Carrasco v Shalimar Talbi | 4-6,6-4,6-3 |
| ITF W25 Oeiras | 2021/04/28 16:05 | Ivana Jorovic v Maria G Carrasco | 7-6,6-7,3-6 |
| ITF W25 Oeiras | 2021/04/27 16:00 | Jenny Duerst v Maria G Carrasco | 6-7,3-6 |
| ITF W25 Oeiras | 2021/04/27 09:00 | Maria G Carrasco v Viktoriia Dema | 6-3,6-1 |
| ITF W25 Oeiras | 2021/04/25 14:00 | Maria G Carrasco v Mafalda Guedes | 6-1,6-1 |
| ITF W25 Oeiras | 2021/04/19 11:05 | Olga Saez Larra v Maria G Carrasco | 1-6,7-6,10-5 |
| ITF W25 Cordoba | 2021/04/10 14:30 | Maria G Carrasco v Beatriz Haddad Maia | 6-7,5-7 |