Stadium: Centre Court Versmold Round: 1
| DTB German Pro Series - nők | 2020/06/16 08:00 | Vivian Heisen v Joelle Lilly Sophie Steur | 6-2,6-0 |
| ITF W25 Moszkva | 2020/02/28 07:55 | Ekaterina Kazionova v Vivian Heisen | 4-6,6-4,6-4 |
| ITF W25 Moszkva | 2020/02/27 08:00 | Aneta Laboutkova v Vivian Heisen | 6-7,4-6 |
| ITF W25 Moszkva | 2020/02/26 13:00 | Vivian Heisen v Sofya Lansere | 6-1,4-6,6-4 |
| ITF W25 Kazan | 2020/01/23 07:00 | Vivian Heisen v Valentini Grammatikopoulou | 2-6,1-6 |
| ITF W25 Kazan | 2020/01/22 08:25 | Vivian Heisen v Alisa Kummel | 6-4,6-0 |
| ITF W100 Dubai | 2019/12/08 13:00 | Vivian Heisen v Nicoleta-Catalina Dascalu | 1-6,3-6 |
| ITF W60 Nantes | 2019/10/31 10:00 | Martina Caregaro v Vivian Heisen | 6-0,6-2 |
| DTB German Pro Series - nők | 2020/06/16 12:00 | Anna-Lena Friedsam v Julia Middendorf | 6-0,3-6,2-6 |
| ITF W25 Braunschweig | 2019/08/21 11:00 | Valeriya Strakhova v Julia Middendorf | 6-0,6-4 |
| ITF Women Hechingen Qual | 2018/08/05 09:00 | Julia Middendorf v Laura Ioana Paar | 5-7,3-6 |
| ITF Women Horb | 2018/07/25 10:00 | Julia Middendorf v Carmen Schultheiss | 2-6,2-6 |
| WTA Stuttgart Qual | 2018/04/21 16:50 | Julia Middendorf v Marta Kostyuk | 1-6,2-6 |