Stadium: Court 3 Village Round: 54 Ground: Clay
| 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 - W100 Contrexeville | 2021/07/05 11:00 | Anna Klasen v Margaux Rouvroy | 4-6,3-6 |
| UTR Pro Tennis Series - Kodaň - ženy | 2021/05/29 12:10 | Sofia Nami Samavati v Anna Klasen | 6-4,6-0 |
| UTR Pro Tennis Series - Kodaň - ženy | 2021/05/28 11:30 | Lou Adler v Anna Klasen | 4-6,2-6 |
| UTR Pro Tennis Series - Kodaň - ženy | 2021/05/27 14:10 | Martha-Elisa Stemann v Anna Klasen | 1-6,2-5 |
| UTR - Pro Tennis Series - Mulheim - ženy | 2021/07/30 14:00 | Michaela Kadleckova v Lexie Stevens | 6-3,6-3 |
| UTR - Pro Tennis Series - Mulheim - ženy | 2021/07/30 08:00 | Almudena S-L Fernandez v Lexie Stevens | 4-6,2-6 |
| UTR - Pro Tennis Series - Mulheim - ženy | 2021/07/29 11:30 | Lina Hohnhold v Lexie Stevens | 3-6,2-5 |
| UTR - Pro Tennis Series - Mulheim - ženy | 2021/07/28 13:00 | Gabriela Knutson v Lexie Stevens | 4-6,6-2,2-6 |
| UTR - Pro Tennis Series - Mulheim - ženy | 2021/07/26 09:30 | Laura Rijkers v Lexie Stevens | 3-6,3-6 |
| ITF - W25 Telavi | 2021/07/20 08:20 | Olivia Tjandramulia v Lexie Stevens | 6-2,6-1 |
| ITF - W25 Telavi | 2021/07/19 06:00 | Lexie Stevens v Sopiko Tsitskishvili | 6-3,6-7,10-6 |
| ITF - W25 Telavi | 2021/07/12 09:00 | Vanda Lukacs v Lexie Stevens | 6-3,6-2 |