| DTB German Pro Series Women | 2020/07/18 14:20 | Laura Siegemund v Koelzer, Romy | 4-6,6-0,6-1 |
| DTB German Pro Series Women | 2020/07/03 12:45 | Koelzer, Romy v Mina Hodzic | 6-2,6-2 |
| DTB German Pro Series Women | 2020/07/02 15:15 | Jule Niemeier v Koelzer, Romy | 7-6,7-5 |
| DTB German Pro Series Women | 2020/07/01 14:00 | Koelzer, Romy v Mina Hodzic | 7-6,6-4 |
| DTB German Pro Series Women | 2020/06/30 09:40 | Laura Siegemund v Koelzer, Romy | 6-0,6-2 |
| DTB German Pro Series Women | 2020/06/18 12:30 | Schultheiss, Carmen v Koelzer, Romy | 6-7,6-7 |
| DTB German Pro Series Women | 2020/06/17 09:30 | Laura Siegemund v Koelzer, Romy | 6-1,6-0 |
| DTB German Pro Series Women | 2020/06/16 14:10 | Schaeder, Laura v Koelzer, Romy | 2-6,5-7 |