Stadium: Court 2 Round: 27 Ground: Clay
| ITF W25 Braunschweig | 2021/08/25 13:00 | Anna Klasen v Tamira Paszek | 6-2,6-3 |
| ITF W25 Koksijde | 2021/08/10 10:05 | Anna Klasen v Katharina Hobgarski | 6-7,4-6 |
| ITF W25 Koksijde | 2021/08/09 12:50 | Ekaterina Kazionova v Anna Klasen | 4-6,6-3,5-10 |
| ITF W25 Koksijde | 2021/08/08 08:00 | Anna Klasen v Lexie Stevens | 6-3,6-3 |
| ITF W60 Versmold | 2021/07/29 12:15 | Federica Di Sarra v Anna Klasen | 6-4,6-4 |
| ITF W60 Versmold | 2021/07/27 13:00 | Anna Klasen v Daniela Seguel | 6-3,6-7,6-4 |
| ITF W60 Versmold | 2021/07/26 15:00 | Anna Klasen v Yana Morderger | 6-7,6-2,10-6 |
| ITF W60 Olomouc | 2021/07/18 08:00 | Amanda Carreras v Anna Klasen | 6-2,6-1 |
| ITF W25 Braunschweig | 2021/08/26 12:50 | Tayisiya Morderger v Eva Lys | 6-3,6-2 |
| ITF W25 Braunschweig | 2021/08/24 15:40 | Tayisiya Morderger v Federica Arcidiacono | 7-6,6-2 |
| ITF W25 Oldenzaal | 2021/08/16 17:35 | Tayisiya Morderger v Kanako Morisaki | 1-6,2-6 |
| ITF W25 Bydgoszcz | 2021/08/04 07:55 | Katharina Gerlach v Tayisiya Morderger | 6-3,6-0 |
| ITF W25 Bydgoszcz | 2021/08/03 10:15 | Tayisiya Morderger v Sakura Hosogi | 6-4,6-0 |
| ITF W25 Bydgoszcz | 2021/08/02 09:40 | Tayisiya Morderger v Martina Marusinova | 6-4,6-1 |
| ITF W60 Versmold | 2021/07/25 07:55 | Vlada Koval v Tayisiya Morderger | 6-2,4-6,10-6 |
| ITF W60 Amstelveen | 2021/07/07 09:30 | Tayisiya Morderger v Barbara Haas | 6-0,5-7,3-6 |