Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ITF W60 Caldas da Rainha | 2019/09/25 10:00 | Amandine Hesse v Heisen, Vivian | 6-4,6-0 |
| ITF W25 Roehampton | 2019/09/20 10:00 | Nuria Parrizas-Diaz v Heisen, Vivian | 7-5,6-2 |
| ITF W25 Roehampton | 2019/09/18 11:05 | Georges, Myrtille v Heisen, Vivian | 1-6,1-6 |
| ITF W25 Roehampton | 2019/09/17 09:45 | Heisen, Vivian v van Nguyen, Chanelle | 6-2,6-1 |
| ITF W60 Meitar | 2019/09/09 10:10 | Heisen, Vivian v Nicole Khirin | 6-7,7-6,4-10 |
| ITF W25 Vienna | 2019/08/27 12:30 | Dascalu, Nicoleta-Catalina v Heisen, Vivian | 6-0,4-6,6-3 |
| ITF W25 Leipzig | 2019/08/14 09:00 | Julia Grabher v Heisen, Vivian | 6-1,6-4 |
| ITF W25 Leipzig | 2019/08/13 09:00 | Heisen, Vivian v Tayisiya Morderger | 6-2,6-0 |
| ITF W60 Nantes | 2019/10/29 10:50 | Verena Meliss v Fomina, Alona | 6-1,6-0 |
| ITF W60 Nantes | 2019/10/28 15:35 | Verena Meliss v Halemai, Mylene | 6-3,6-3 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/26 09:00 | Verena Meliss v Ekaterina Kazionova | 3-6,0-6 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/25 08:00 | Verena Meliss v Kathleen Kanev | 6-3,6-2 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/24 08:00 | Verena Meliss v Iveta Dapkute | 6-2,7-5 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/23 07:00 | Verena Meliss v Jelen, Aleksandra Julia | 6-1,6-4 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/22 08:35 | Verena Meliss v Elena Jamshidi | 4-6,6-4,6-2 |
| ITF W25 Santa Margherita | 2019/10/09 12:00 | Verena Meliss v Nadia Podoroska | 3-6,3-6 |