| WTA Nurnberg | 2017/05/23 10:05 | Kiki Bertens v Katharina Gerlach | 6-2,6-1 |
| ITF Women Wiesbaden | 2017/05/05 08:45 | Petra Martic v Katharina Gerlach | 7-5,6-0 |
| ITF Women Wiesbaden | 2017/05/03 09:55 | Katharina Gerlach v Kathleen Kanev | 6-0,6-2 |
| ITF Women Wiesbaden | 2017/05/02 13:00 | Laura Schaeder v Katharina Gerlach | 1-6,4-6 |
| ITF Women Wiesbaden | 2017/05/02 07:30 | Sabrina Rittberger v Katharina Gerlach | 1-6,4-6 |
| WTA Stuttgart Qual | 2017/04/22 12:25 | Lesley Pattinama Kerkhove v Katharina Gerlach | 7-5,6-4 |
| ITF Women Hammamet | 2017/04/14 09:00 | Fernanda Brito v Katharina Gerlach | 6-2,6-0 |
| ITF Women Hammamet | 2017/04/13 08:30 | Petra Januskova v Katharina Gerlach | 1-6,3-6 |
| ITF Women Essen | 2017/06/04 09:30 | Alexandra Vukota v Justine Pysson | 2-6,1-6 |
| ITF Women Engis | 2016/09/06 10:00 | Justine Pysson v Chiara Grimm | 1-6,2-6 |