| ITF W25 Santa Margherita | 2019/05/01 16:30 | Lisa Matviyenko v Romy Koelzer | 6-1,1-6,6-1 |
| 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 | 2020/08/18 13:00 | Andreea Amalia Rosca v Romy Koelzer | 7-6,6-0 |
| German Premier League Women | 2020/08/17 08:20 | Romy Koelzer v Silvia Ambrosio | 5-7,6-4,6-1 |
| German Premier League Women | 2020/08/07 10:15 | Romy Koelzer v Katharina Hering | 6-3,6-3 |
| German Premier League Women | 2020/08/06 12:10 | Yana Morderger v Romy Koelzer | 6-0,6-0 |
| German Premier League Women | 2020/08/05 15:20 | Richel Hogenkamp v Romy Koelzer | 6-2,6-4 |
| DTB German Pro Series Women | 2020/07/03 12:00 | Julia Middendorf v Lisa Matviyenko | 6-1,7-5 |
| DTB German Pro Series Women | 2020/07/02 15:15 | Anna Zaja v Lisa Matviyenko | 7-6,5-7,6-4 |
| DTB German Pro Series Women | 2020/07/02 07:30 | Lisa Matviyenko v Julia Middendorf | 0-6,1-6 |
| DTB German Pro Series Women | 2020/06/30 12:30 | Tamara Korpatsch v Lisa Matviyenko | 6-1,6-2 |
| DTB German Pro Series Women | 2020/06/18 14:45 | Lisa Matviyenko v Anna Zaja | 1-6,1-6 |
| DTB German Pro Series Women | 2020/06/17 12:05 | Lisa Matviyenko v Sarah Mueller | 6-4,6-3 |
| DTB German Pro Series Women | 2020/06/16 12:00 | Lisa Matviyenko v Eva Lys | 5-7,5-7 |
| ITF W15 Heraklion | 2019/11/14 10:45 | Lisa Matviyenko v Iva Primorac | 5-7,1-6 |