Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Women Pune | 2018/11/25 07:25 | Gerlach, Katharina v Eden Silva | 6-2,6-2 |
| ITF Women Pune | 2018/11/24 06:15 | Gerlach, Katharina v Melanie Klaffner | 6-2,7-5 |
| ITF Women Shrewsbury | 2018/11/06 14:15 | Gerlach, Katharina v Zaja, Anna | 4-6,4-6 |
| ITF Women Wirral | 2018/10/30 13:15 | Greet Minnen v Gerlach, Katharina | 6-3,6-3 |
| ITF Women Oslo | 2018/10/23 08:00 | Gerlach, Katharina v Piter, Katarzyna | 4-6,2-6 |
| WTA Luxembourg | 2018/10/13 14:20 | Gerlach, Katharina v Greet Minnen | 7-5,3-6,1-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/19 12:00 | Anastasia Grymalska v Gerlach, Katharina | 6-4,6-4 |
| ITF Women Braunschweig | 2018/08/21 10:00 | Maria F Herazo Gonzalez v Gerlach, Katharina | 2-6,6-2,6-1 |
| ITF Women Muzaffarnagar | 2018/11/13 08:50 | Riya Bhatia v Kolar, Nastja | 1-6,3-6 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/12 15:30 | Conny Perrin v Riya Bhatia | 6-7,7-6,6-4 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/11 11:20 | Riya Bhatia v Kolar, Nastja | 6-2,6-3 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/10 10:30 | Fiona Codino v Riya Bhatia | 3-6,5-7 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/08 10:30 | Coppola, Claudia v Riya Bhatia | 2-6,6-7 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/03 12:20 | Yadlapalli, Pranjala v Riya Bhatia | 6-4,6-4 |
| Lagos, Singles W-WITF-NGR-02A | 2018/10/01 15:00 | Kajsa Rinaldo Persson v Riya Bhatia | 3-6,4-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/09/05 02:00 | Riya Bhatia v Prerna Bhambri | 3-6,4-6 |