Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - W15 Monastir | 2021/11/16 08:00 | Judith P Saavedra v Mueller, Sarah | 6-3,5-7,7-10 |
| ITF - W15 Monastir | 2021/11/15 11:30 | Chanel Janssen v Mueller, Sarah | 1-6,4-6 |
| ITF - W15 Monastir | 2021/11/08 10:30 | Selina Dal v Mueller, Sarah | 6-4,6-1 |
| ITF - W15 Monastir | 2021/10/31 13:30 | Xinxin Yao v Mueller, Sarah | 6-4,6-2 |
| German Championship Women | 2020/12/07 09:30 | Mueller, Sarah v Silvia Ambrosio | 1-6,3-6 |
| DTB German Pro Series Women | 2020/07/03 08:00 | Kathleen Kanev v Mueller, Sarah | 4-6,4-6 |
| DTB German Pro Series Women | 2020/07/02 10:00 | Wachaczyk, Julia v Mueller, Sarah | 6-0,3-6,6-2 |
| DTB German Pro Series Women | 2020/07/01 12:00 | Mueller, Sarah v Kathleen Kanev | 2-6,6-7 |
| ITF - W15 Monastir | 2021/11/09 12:25 | Stevens, Lexie v Nicole Gadient | 6-4,6-4 |
| ITF - W15 Monastir | 2021/11/04 10:10 | Julia Middendorf v Nicole Gadient | 4-6,6-3,6-1 |
| ITF - W15 Monastir | 2021/11/03 10:30 | Charlotte Wijkamp v Nicole Gadient | 4-6,2-6 |
| ITF W15 Sozopol | 2021/10/13 09:00 | Nicole Gadient v Katerina Dimitrova | 3-6,3-6 |
| ITF W15 Sozopol | 2021/10/06 09:30 | Nicole Gadient v Briana Szabo | 5-7,4-6 |
| ITF W25 Jablonec nad Nisou | 2021/09/12 11:30 | Gergana Topalova v Nicole Gadient | 6-3,6-4 |
| ITF W25 Frydek Mistek | 2021/09/05 12:00 | Nicole Gadient v Samavati, Sofia Nami | 1-6,3-6 |
| ITF W25 Vienna | 2021/08/29 14:00 | Aneta Kucmova v Nicole Gadient | 6-1,6-1 |