Stadium: Court 3 Round: 54 Ground: Clay
| ITF W60 Saint-Gaudens | 2021/05/10 15:30 | Katharina Gerlach v Estelle Cascino | 6-3,6-4 |
| ITF W25 Oeiras | 2021/05/01 09:25 | Katharina Gerlach v Maria G Carrasco | 3-6,3-6 |
| 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 kvalifikace | 2021/04/10 15:00 | Katharina Gerlach v Storm Hunter | 3-6,2-6 |
| ITF W60 Saint-Gaudens | 2021/05/10 16:35 | Lucie Wargnier v Vlada Koval | 4-6,4-6 |
| ITF W15 - Antalya | 2021/04/21 11:50 | Ziva Falkner v Vlada Koval | 6-3,6-2 |
| ITF W15 - Antalya | 2021/04/16 07:00 | Vlada Koval v Alice Rame | 3-6,3-6 |
| ITF W15 - Antalya | 2021/04/15 07:00 | Vlada Koval v So-Ra Lee | 6-4,3-6,6-3 |
| ITF W15 - Antalya | 2021/04/14 07:00 | Vlada Koval v Doga Turkmen | 6-1,6-0 |
| ITF W25 Kazaň | 2021/03/10 10:30 | Vlada Koval v Valeria Savinykh | 2-6,6-1,6-7 |
| ITF W25 Moskva | 2021/02/24 10:45 | Olga Doroshina v Vlada Koval | 2-6,7-6,6-3 |
| ITF W25 Moskva | 2021/02/23 10:25 | Vlada Koval v Elena Malygina | 3-6,6-2,10-7 |