| ITF W25 Obidos | 2019/05/06 14:50 | Lou Adler v Anna Klasen | 6-2,7-5 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/27 09:30 | Lou Adler v Zoe Du P Jensen | 6-2,5-2 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/26 08:00 | Lou Adler v Natacha Schou | 6-2,3-6,6-6 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/24 11:30 | Karoline Laursen v Lou Adler | 2-6,4-6 |
| UTR Pro Tennis Series Barcelona - Dames | 2021/04/15 14:30 | Oksana Selekhmeteva v Lou Adler | 6-3,6-4 |
| UTR Pro Tennis Series Barcelona - Dames | 2021/04/13 12:00 | Oleksandra Oliynykova v Lou Adler | 6-0,7-5 |
| UTR Pro Tennis Series Barcelona - Dames | 2021/04/13 07:30 | Lou Adler v Cheri Darley | 6-2,1-6,7-6 |
| UTR Pro Tennis Series Barcelona - Dames | 2021/02/13 12:00 | Lou Adler v Yvonne Cavalle-Reimers | 5-7,3-6 |
| UTR Pro Tennis Series Barcelona - Dames | 2021/02/12 12:30 | Lou Adler v Ariadna Briones Ginesta | 7-5,6-0 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/27 14:10 | Martha-Elisa Stemann v Anna Klasen | 1-6,2-5 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/26 08:00 | Karoline Laursen v Anna Klasen | 2-6,1-6 |
| UTR Pro Tennis Series - Kopenhagen - Dames | 2021/05/24 11:30 | Anna Klasen v Zoe Du P Jensen | 6-2,5-1 |
| German Championship - Dames | 2020/12/10 12:00 | Nastasja Schunk v Anna Klasen | 6-2,6-1 |
| German Masters Women | 2020/08/28 07:35 | Romy Koelzer v Anna Klasen | 7-6,7-6 |
| Duitsland - Premier League - Dames | 2020/08/27 06:30 | Elena-Teodora Cadar v Anna Klasen | 2-6,1-6 |
| Duitsland - Premier League - Dames | 2020/08/26 06:30 | Yana Morderger v Anna Klasen | 2-6,2-6 |
| Duitsland - Premier League - Dames | 2020/08/25 06:30 | Lisa Matviyenko v Anna Klasen | 3-6,0-6 |