Stadium: Centre Court Round: 45 Ground: Hardcourt indoor
| ITF Women Valencia | 2018/09/25 16:55 | Carina Witthoeft v Jasmine Paolini | 3-6,4-6 |
| ITF Women Biarritz | 2018/09/13 15:00 | Carina Witthoeft v Rebecca Sramkova | 6-7,6-7 |
| ITF Women Biarritz | 2018/09/12 13:25 | Carina Witthoeft v Elitsa Kostova | 6-4,7-6 |
| US Open Women | 2018/08/29 23:05 | Serena Williams v Carina Witthoeft | 6-2,6-2 |
| US Open Women | 2018/08/27 23:40 | Caroline Dolehide v Carina Witthoeft | 3-6,6-7 |
| WTA New Haven | 2018/08/18 19:15 | Pauline Parmentier v Carina Witthoeft | 7-5,6-2 |
| WTA Gstaad | 2018/07/17 08:30 | Evgeniya Rodina v Carina Witthoeft | 6-7,6-4,7-6 |
| ITF Women Versmold | 2018/07/13 15:35 | Carina Witthoeft v Laura Siegemund | 1-6,3-6 |
| ITF Women Valencia | 2018/09/26 09:00 | Andrea Gamiz v Valentini Grammatikopoulou | 3-6,6-4,6-2 |
| ITF Women Zagreb | 2018/09/06 10:55 | Kaja Juvan v Valentini Grammatikopoulou | 6-3,6-2 |
| ITF Women Zagreb | 2018/09/05 10:55 | Lea Boskovic v Valentini Grammatikopoulou | 3-6,6-7 |
| ITF Women Bagnatica | 2018/08/31 12:30 | Valentini Grammatikopoulou v Jasmine Paolini | 2-6,3-6 |
| ITF Women Bagnatica | 2018/08/29 12:00 | Valentini Grammatikopoulou v Marie Benoit | 7-6,6-4 |
| ITF Women Bagnatica | 2018/08/28 14:20 | Valentini Grammatikopoulou v Camilla Scala | 4-6,6-1,6-1 |
| US Open Women | 2018/08/21 15:00 | Valentini Grammatikopoulou v Silvia Soler-Espinosa | 4-6,6-7 |
| ITF Women Chiswick | 2018/08/11 10:00 | Vitalia Diatchenko v Valentini Grammatikopoulou | 6-1,7-5 |