Stadium: Court 1 Round: 27
| ITF Women Montreux | 2018/09/06 11:00 | Maryna Zanevska v Kimberley Zimmermann | 2-6,6-3,1-6 |
| ITF Women Montreux | 2018/09/05 08:00 | Kimberley Zimmermann v Andreea Mitu | 6-2,6-2 |
| ITF Women Bagnatica | 2018/09/01 14:00 | Jasmine Paolini v Kimberley Zimmermann | 7-6,6-1 |
| ITF Women Bagnatica | 2018/08/29 12:00 | Kimberley Zimmermann v Ylena In-Albon | 7-5,4-6,6-4 |
| ITF Women Bagnatica | 2018/08/28 07:30 | Maryna Zanevska v Kimberley Zimmermann | 6-2,3-6,2-6 |
| ITF Women LPD Gran Canaria | 2018/08/17 11:45 | Chloe Paquet v Kimberley Zimmermann | 6-2,7-6 |
| ITF Women LPD Gran Canaria | 2018/08/16 11:35 | Martina Colmegna v Kimberley Zimmermann | 6-3,5-7,2-6 |
| ITF Women LPD Gran Canaria | 2018/08/15 09:00 | Mirjam Bjorklund v Kimberley Zimmermann | 2-6,2-6 |
| ITF Women Montreux | 2018/09/06 08:00 | Mari Osaka v Martina Trevisan | 6-3,6-2 |
| ITF Women Montreux | 2018/09/04 09:30 | Mari Osaka v Monika Kilnarova | 6-2,6-1 |
| ITF Women Budapest | 2018/08/25 12:40 | Mari Osaka v Maria Marfutina | 1-6,2-6 |
| ITF Women Braunschweig | 2018/08/22 09:00 | Anastasia Zarycka v Mari Osaka | 6-4,7-5 |
| ITF Women Porto | 2018/07/24 09:30 | Lisa Sabino v Mari Osaka | 6-2,6-1 |
| WTA Bucharest Qual | 2018/07/14 11:15 | Claire Liu v Mari Osaka | 6-0,3-6,6-4 |
| ITF Women Denain | 2018/07/06 09:00 | Aliona Bolsova Zadoinov v Mari Osaka | 6-1,6-4 |
| ITF Women Denain | 2018/07/05 11:05 | Quirine Lemoine v Mari Osaka | 4-6,0-6 |