| German Championship - Frauen | 2021/12/07 09:00 | Sabrina Rittberger v Charlotte Keitel | 6-1,6-3 |
| ITF Damen - W15 - Sibenik | 2021/05/25 08:00 | Federica Rossi v Sabrina Rittberger | 6-3,6-0 |
| ITF Damen - W15 - Sibenik | 2021/05/24 08:00 | Sabrina Rittberger v Lisa-Marie Rioux | 7-5,6-4 |
| ITF Damen - W15 - Sibenik | 2021/05/17 09:25 | Sabrina Rittberger v Victoria Borodulina | 6-3,5-7,4-10 |
| ITF Damen - W15 - Sibenik | 2021/05/16 07:30 | Raphaelle Lacasse v Sabrina Rittberger | 4-6,7-5,4-10 |
| UTR Pro Tennis Series - Barcelona - Damen | 2021/02/13 12:00 | Sabrina Rittberger v Alice Tubello | 2-6,2-6 |
| UTR Pro Tennis Series - Barcelona - Damen | 2021/02/12 12:30 | Jade Suvrijn v Sabrina Rittberger | 6-0,1-6,6-3 |
| UTR Pro Tennis Series - Barcelona - Damen | 2021/02/11 09:00 | Irina Maria Bara v Sabrina Rittberger | 6-4,6-1 |
| German Championship - Frauen | 2021/12/06 14:30 | Fabienne Gettwart v Lara Schmidt | 0-6,3-6 |
| ITF Damen - W25 - Hamburg | 2021/10/18 13:10 | Lara Schmidt v Anna-Marie Weissheim | 1-6,2-6 |
| ITF Damen - W25 - Hamburg | 2021/10/18 07:50 | Sara Cakarevic v Lara Schmidt | 4-6,6-4,7-10 |
| ITF Damen - W25 - Frydek Mistek | 2021/09/06 10:00 | Lara Schmidt v Mana Kawamura | 0-6,6-3,3-10 |
| ITF Damen - W25 - Frydek Mistek | 2021/09/05 12:00 | Aleksandra Melnikova v Lara Schmidt | 1-6,2-6 |
| ITF Damen - W15 - Aix-en-Provence | 2021/08/31 12:35 | Lara Schmidt v Alice Tubello | 2-6,2-6 |
| ITF Damen - W15 - Wanfercee-Baulet | 2021/08/25 07:30 | Lara Schmidt v Astrid Wanja Brune Olsen | 3-6,6-2,2-6 |
| ITF Damen - W15 - Warmbad-Villach | 2021/08/15 07:00 | Lara Schmidt v Adela Moravcova | 6-2,6-2 |