| German Premier League Women | 2020/07/27 08:00 | Koelzer, Romy v Klasen, Charlotte | 6-2,3-6,6-7 |
| 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 |
| German Premier League Women | 2020/07/27 17:50 | Zanevska, Maryna v Antonia Schmidt | 6-2,6-0 |
| ITF - W15 Antalya | 2020/02/17 07:00 | Antonia Schmidt v Viertler, Marion | 2-6,2-6 |
| ITF - W15 Antalya | 2020/02/16 07:00 | Antonia Schmidt v Peeva, Stela | 4-6,6-4,10-3 |
| ITF - W15 Antalya | 2020/02/15 10:40 | Antonia Schmidt v Nina Stadler | 5-7,1-6 |
| ITF - W15 Antalya | 2020/02/14 12:15 | Lazareva, Margarita v Antonia Schmidt | 3-6,7-6,7-10 |
| ITF - W15 Antalya | 2020/02/13 15:15 | Davydova, Anna v Antonia Schmidt | 4-6,2-6 |
| ITF - W15 Antalya | 2020/02/13 09:30 | Antonia Schmidt v Sokovic, Nevena | 3-6,6-3,13-11 |
| ITF - W15 Antalya | 2020/02/11 06:30 | Barbara Dessolis v Antonia Schmidt | 2-6,2-6 |