Stadium: Court 11 Round: 25 Ground: Grass
| ITF - Altenkirchen W25 | 2019/02/18 18:45 | Katharina Gerlach v Stephanie Wagner | 6-3,3-6,5-10 |
| ITF - Altenkirchen W25 | 2019/02/18 13:55 | Katharina Gerlach v Emily Webley-Smith | 6-2,6-4 |
| ITF W60 Shrewsbury | 2019/02/11 10:00 | Kimberley Zimmermann v Katharina Gerlach | 6-3,6-3 |
| ITF - Midland W100 | 2019/01/28 15:00 | Quinn Gleason v Katharina Gerlach | 2-6,6-2,10-7 |
| WTA Newport Beach | 2019/01/21 20:20 | Harmony Tan v Katharina Gerlach | 6-4,6-2 |
| ITF Women Pune | 2018/11/28 06:55 | Valeriya Strakhova v Katharina Gerlach | 7-6,7-5 |
| ITF Women Pune | 2018/11/26 04:30 | Katharina Gerlach v Riya Bhatia | 6-0,6-3 |
| ITF Women Pune | 2018/11/25 07:25 | Katharina Gerlach v Eden Silva | 6-2,6-2 |
| ITF - Osaka W25 | 2019/03/01 01:00 | Fangzhou Liu v Hiroko Kuwata | 6-2,6-1 |
| ITF - Osaka W25 | 2019/02/27 03:50 | Hiroko Kuwata v Miyabi Inoue | 6-4,6-4 |
| ITF - Kyoto W60 | 2019/02/19 08:30 | Hiroko Kuwata v Fangzhou Liu | 3-6,1-6 |
| ITF - Jodhpur W25 | 2019/02/01 04:30 | Hiroko Kuwata v Miharu Imanishi | 7-6,6-7,4-6 |
| ITF - Jodhpur W25 | 2019/01/31 04:30 | Hiroko Kuwata v Paige Mary Hourigan | 6-2,5-7,6-4 |
| ITF - Jodhpur W25 | 2019/01/29 05:55 | Hiroko Kuwata v Nefisa Berberovic | 1-6,6-3,7-6 |
| ITF - Hongkong W25 | 2019/01/10 02:00 | Hiroko Kuwata v Shuyue Ma | 6-7,6-2,4-6 |
| ITF - Hongkong W25 | 2019/01/08 04:45 | Hiroko Kuwata v Man Ying Maggie Ng | 6-1,6-2 |