Stadium: Centre Court Darmstadt
| DTB German Pro Series Women | 2020/07/01 08:00 | Schaeder, Laura v Wachaczyk, Julia | 1-6,2-6 |
| DTB German Pro Series Women | 2020/06/19 10:40 | Wachaczyk, Julia v Steur, Julyette Maria Josephine | 3-6,6-4,6-4 |
| Sunderland, Simples W-ITF-GBR-04A | 2020/02/27 11:50 | Murray Sharan, S. v Wachaczyk, Julia | 6-1,6-4 |
| Sunderland, Simples W-ITF-GBR-04A | 2020/02/26 10:00 | Wachaczyk, Julia v Eva Vedder | 6-4,6-3 |
| Sunderland, Simples W-ITF-GBR-04A | 2020/02/24 15:40 | Olga Parres Azcoitia v Wachaczyk, Julia | 1-6,4-6 |
| Sunderland, Simples W-ITF-GBR-04A | 2020/02/23 15:50 | Cross, Morgan v Wachaczyk, Julia | 6-7,2-6 |
| ITF W25 Glasgow | 2020/02/16 12:30 | Wachaczyk, Julia v Oana Georgeta Simion | 6-4,5-7,9-11 |
| St. Etienne, Singles W-ITF-FRA-28A | 2019/11/06 15:40 | Wachaczyk, Julia v Diatchenko, Vitalia | 3-6,2-6 |
| DTB German Pro Series Women | 2020/07/01 12:00 | Mueller, Sarah v Kathleen Kanev | 2-6,6-7 |
| DTB German Pro Series Women | 2020/06/30 08:00 | Schaeder, Laura v Mueller, Sarah | 6-3,6-1 |
| DTB German Pro Series Women | 2020/06/19 08:00 | Schultheiss, Carmen v Mueller, Sarah | 7-5,3-6,1-6 |
| DTB German Pro Series Women | 2020/06/18 08:15 | Eva Lys v Mueller, Sarah | 6-2,6-2 |
| DTB German Pro Series Women | 2020/06/17 12:05 | Matvienko, Lisa v Mueller, Sarah | 6-4,6-3 |
| DTB German Pro Series Women | 2020/06/16 08:00 | Zaja, Anna v Mueller, Sarah | 6-1,6-3 |
| ITF W25 Petange | 2019/10/29 09:35 | Arlinda Rushiti v Mueller, Sarah | 5-7,6-3,10-4 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/09/23 12:30 | Audenaert, Eline v Mueller, Sarah | 7-5,6-3 |