Stadium: Court 5 Round: 25 Ground: Clay
| ITF W25 Braunschweig | 2019/08/25 09:30 | Cagla Buyukakcay v Gerlach, Katharina | 6-4,6-2 |
| ITF W25 Braunschweig | 2019/08/24 12:10 | Jani, Reka-Luca v Gerlach, Katharina | 6-2,6-7,3-6 |
| ITF W25 Braunschweig | 2019/08/23 13:05 | Gerlach, Katharina v Ferrando, Cristiana | 6-3,6-2 |
| ITF W25 Braunschweig | 2019/08/22 11:55 | Kathinka Von Deichmann v Gerlach, Katharina | 4-6,6-0,3-6 |
| ITF W25 Braunschweig | 2019/08/21 14:50 | Gerlach, Katharina v Yana Morderger | 6-2,7-6 |
| ITF W25 Leipzig | 2019/08/18 11:00 | Jule Niemeier v Gerlach, Katharina | 6-3,6-3 |
| ITF W25 Leipzig | 2019/08/17 09:00 | Gerlach, Katharina v Ivakhnenko, Valentyna | 6-2,6-2 |
| ITF W25 Leipzig | 2019/08/16 10:20 | Gerlach, Katharina v Caroline Werner | 6-4,6-4 |
| ITF W25 Trieste | 2019/09/06 09:00 | Lucrezia Stefanini v Valentini Grammatikopoulou | 6-1,6-0 |
| ITF W25 Trieste | 2019/09/05 08:15 | Camilla Rosatello v Valentini Grammatikopoulou | 4-6,5-7 |
| ITF W25 Trieste | 2019/09/04 07:00 | Ponomar, Lisa v Valentini Grammatikopoulou | 2-6,0-6 |
| US Open Women | 2019/08/19 15:00 | Maddison Inglis v Valentini Grammatikopoulou | 6-3,6-4 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/10 10:30 | Valentini Grammatikopoulou v Murray Sharan, S. | 4-6,2-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/09 10:30 | Ekani, Irys v Valentini Grammatikopoulou | 6-3,4-6,2-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/08 09:00 | Yuriko Lily Miyazaki v Valentini Grammatikopoulou | 3-6,6-4,6-7 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/06 11:00 | Ali Collins v Valentini Grammatikopoulou | 1-6,6-2,0-6 |