Stadium: Court 1 Round: 26
| ITF Women Badenweiler | 2017/09/06 12:35 | Gerlach, Katharina v Samavati, Sofia Nami | 6-0,6-2 |
| ITF Women Braunschweig | 2017/08/24 13:15 | Gerlach, Katharina v Stokke, Melanie | 6-7,1-6 |
| ITF Women Braunschweig | 2017/08/23 11:00 | Gerlach, Katharina v Roemer, Charlotte | 2-6,6-2,6-4 |
| ITF Women Leipzig | 2017/08/17 10:00 | Hogenkamp, Richel v Gerlach, Katharina | 6-2,7-6 |
| ITF Women Leipzig | 2017/08/16 13:20 | Marozava, Lidziya v Gerlach, Katharina | 3-6,2-6 |
| ITF Women Hechingen Qual | 2017/08/06 14:00 | Chantraine, Catherine v Gerlach, Katharina | 6-3,6-1 |
| ITF Women Bad Saulgau Qual | 2017/07/31 09:30 | Gerlach, Katharina v Sumova, Diana | 4-6,3-6 |
| ITF Women Aschaffenburg | 2017/07/20 11:00 | Gerlach, Katharina v Matvienko, Lisa | 4-6,1-6 |
| ITF Women Badenweiler | 2017/09/06 12:45 | Natalia Siedliska v Zdrubecka, Dagmar | 6-3,6-2 |
| ITF Women Middelkerke | 2017/09/01 08:00 | Natalia Siedliska v Meers, Luna | 4-6,4-6 |
| ITF Women Middelkerke | 2017/08/29 09:50 | Cristina Bucsa v Natalia Siedliska | 6-7,5-7 |
| ITF Women Middelkerke Qual | 2017/08/27 12:00 | Pinto, Vanessa v Natalia Siedliska | 7-5,1-6,3-6 |