| ITF Women Solarino | 2018/03/07 10:35 | Anna Klasen v Romy Koelzer | 2-6,7-5,6-3 |
| German Masters Women | 2020/08/27 14:25 | Fabienne Gettwart v Romy Koelzer | 2-6,3-6 |
| German Premier League Women | 2020/08/27 12:30 | Fabienne Gettwart v Romy Koelzer | 2-6,3-6 |
| German Premier League Women | 2020/08/26 08:00 | Romy Koelzer v Elena-Teodora Cadar | 6-4,6-4 |
| German Premier League Women | 2020/08/25 10:50 | Yana Morderger v Romy Koelzer | 2-6,7-6,6-4 |
| German Premier League Women | 2020/08/24 12:20 | Romy Koelzer v Lisa Matviyenko | 6-4,6-2 |
| German Premier League Women | 2020/08/21 12:10 | Romy Koelzer v Charlotte Klasen | 6-3,6-0 |
| German Premier League Women | 2020/08/20 07:50 | Katharina Hering v Romy Koelzer | 6-3,7-5 |
| German Premier League Women | 2020/08/19 16:55 | Romy Koelzer v Laura Boehner | 6-1,6-3 |
| German Premier League Women | 2020/08/27 06:30 | Elena-Teodora Cadar v Anna Klasen | 2-6,1-6 |
| German Premier League Women | 2020/08/26 06:30 | Yana Morderger v Anna Klasen | 2-6,2-6 |
| German Premier League Women | 2020/08/25 06:30 | Lisa Matviyenko v Anna Klasen | 3-6,0-6 |
| German Premier League Women | 2020/08/24 08:00 | Ganna Poznikhirenko v Anna Klasen | 3-6,1-6 |
| German Premier League Women | 2020/08/21 15:25 | Elena-Teodora Cadar v Anna Klasen | 1-6,3-6 |
| German Premier League Women | 2020/08/20 14:05 | Anna Klasen v Sophia Intert | 6-2,6-1 |
| German Premier League Women | 2020/08/19 06:30 | Chantal Sauvant v Anna Klasen | 7-5,7-5 |
| German Premier League Women | 2020/08/18 11:15 | Ekaterine Gorgodze v Anna Klasen | 6-4,6-4 |