Stadium: Center Court Stuttgart Round: 25 Ground: Clay
| ITF W25 Darmstadt | 2019/06/25 15:45 | Olga Govortsova v Katharina Gerlach | 6-1,6-1 |
| ITF W25 Klosters | 2019/06/19 07:00 | Katharina Gerlach v Joanne Zuger | 4-6,2-6 |
| WTA Nurnberg | 2019/05/19 10:15 | Jana Cepelova v Katharina Gerlach | 3-6,6-4,6-4 |
| WTA Nurnberg | 2019/05/18 12:35 | Katharina Gerlach v Pemra Ozgen | 6-3,6-0 |
| ITF W60 Wiesbaden | 2019/05/01 12:10 | Katharina Gerlach v Anna Zaja | 4-6,6-3,0-6 |
| ITF W25 Tunis | 2019/04/11 11:50 | Lara Salden v Katharina Gerlach | 6-2,7-5 |
| ITF W25 Tunis | 2019/04/10 12:00 | Martina Caregaro v Katharina Gerlach | 7-5,1-6,3-6 |
| ITF W25 Canberra | 2019/03/27 04:50 | Leylah Annie Fernandez v Katharina Gerlach | 6-3,3-6,6-4 |
| ITF W25 Darmstadt | 2019/06/27 12:25 | Caroline Werner v Katharina Hobgarski | 3-6,6-4,2-6 |
| ITF W25 Darmstadt | 2019/06/25 12:00 | Margot Yerolymos v Caroline Werner | 6-7,7-6,5-7 |
| ITF W25 Essen | 2019/05/27 13:25 | Caroline Werner v Martina Colmegna | 2-6,1-6 |
| ITF W25 Essen | 2019/05/27 09:35 | Caroline Werner v Arina Gabriela Vasilescu | 7-6,6-1 |
| ITF W25 Caserta | 2019/05/22 09:00 | Caroline Werner v Victoria Kan | 3-6,3-6 |
| ITF W60 La Bisbal | 2019/05/13 13:15 | Dalma Galfi v Caroline Werner | 6-7,6-4,10-8 |
| ITF W60 La Bisbal | 2019/05/13 09:30 | Laura Pigossi v Caroline Werner | 0-6,6-3,8-10 |
| ITF W25 Rome | 2019/05/08 12:15 | Camilla Rosatello v Caroline Werner | 6-4,7-5 |