Stadium: Court 2 Round: 54
| ITF Women Mallorca | 2018/02/09 10:15 | Rosa Vicens Mas v Katharina Gerlach | 6-3,3-6,1-6 |
| ITF Women Hechingen Qual | 2018/08/07 11:00 | Tamara Korpatsch v Katharina Gerlach | 6-3,6-2 |
| ITF Women Hechingen Qual | 2018/08/06 15:00 | Petra Januskova v Katharina Gerlach | 0-6,4-6 |
| ITF Women Hechingen Qual | 2018/08/05 13:30 | Gabriela Pantuckova v Katharina Gerlach | 0-6,2-6 |
| ITF Women Bad Saulgau | 2018/08/03 16:00 | Katharina Gerlach v Laura Siegemund | 0-6,1-6 |
| ITF Women Bad Saulgau | 2018/08/02 12:35 | Helene Scholsen v Katharina Gerlach | 3-6,3-6 |
| ITF Women Bad Saulgau | 2018/08/01 15:20 | Eleni Kordolaimi v Katharina Gerlach | 2-6,4-6 |
| ITF Women Horb | 2018/07/29 13:00 | Katarzyna Piter v Katharina Gerlach | 6-4,3-6,6-7 |
| ITF Women Horb | 2018/07/28 11:30 | Polina Leykina v Katharina Gerlach | 1-6,4-6 |
| ITF Women Leipzig | 2018/08/13 16:30 | Rosa Vicens Mas v Vivian Heisen | 6-3,3-6,4-6 |
| ITF Women Leipzig | 2018/08/12 09:00 | Rosa Vicens Mas v Anette Munozova | 7-6,6-2 |
| WTA Mallorca Qual | 2018/06/17 10:35 | Rosa Vicens Mas v Sofia Kenin | 2-6,0-6 |
| ITF Women Obidos | 2018/06/15 14:30 | Rosa Vicens Mas v Nuria Parrizas-Diaz | 2-6,2-6 |
| ITF Women Obidos | 2018/06/14 13:00 | Maia Lumsden v Rosa Vicens Mas | 5-7,6-4,3-6 |
| ITF Women Obidos | 2018/06/12 12:05 | Rosa Vicens Mas v Francesca Jones | 6-4,6-4 |
| ITF Women Obidos Qual | 2018/06/11 11:00 | Rosa Vicens Mas v Yesica De Lucas | 6-2,3-6,6-2 |
| ITF Women Obidos | 2018/06/08 15:00 | Rosa Vicens Mas v Nuria Parrizas-Diaz | 6-7,4-6 |