Stadium: Center Court Round: 25
| ITF Women Essen | 2018/06/12 10:30 | Ekaterine Gorgodze v Katharina Gerlach | 6-0,1-6,6-1 |
| WTA Nurnberg Qual | 2018/05/19 13:05 | Katharina Gerlach v Anna Zaja | 6-7,3-6 |
| ITF Women Balatonboglar | 2018/05/02 10:55 | Kaja Juvan v Katharina Gerlach | 6-2,6-1 |
| ITF Women Balatonboglar | 2018/05/01 09:40 | Katharina Gerlach v Dalma Galfi | 6-3,4-6,6-2 |
| WTA Stuttgart Qual | 2018/04/21 11:45 | Su-Wei Hsieh v Katharina Gerlach | 2-6,7-5,6-2 |
| ITF Women Santa Margherita Qual | 2018/03/27 13:00 | Martina Di Giuseppe v Katharina Gerlach | 6-3,7-5 |
| ITF Women Santa Margherita Qual | 2018/03/21 10:30 | Tena Lukas v Katharina Gerlach | 6-4,6-2 |
| ITF Women Santa Margherita Qual | 2018/03/19 13:00 | Ana Vrljic v Katharina Gerlach | 4-6,3-6 |
| ITF Women Kaltenkirchen | 2018/06/18 13:00 | Antonia Schmidt v Lucie Wargnier | 2-6,2-6 |
| ITF Women Kaltenkirchen | 2018/06/17 08:30 | Lucie Wargnier v Selina Dal | 6-3,6-1 |
| ITF Women Madrid | 2018/06/05 13:55 | Lucie Wargnier v Julie Gervais | 6-4,4-6,4-6 |
| ITF Women Madrid Qual | 2018/06/04 09:00 | Lucie Wargnier v Sara Lizariturry | 6-1,6-2 |
| ITF Women Oeiras | 2018/05/26 10:00 | Lucie Wargnier v Tamaryn Hendler | 4-6,7-6,3-6 |
| ITF Women Oeiras | 2018/05/25 13:00 | Lucie Wargnier v Lucia Cortez Llorca | 6-4,6-3 |
| ITF Women Oeiras | 2018/05/25 09:30 | Lucie Wargnier v Maria Ines Fonte | 6-1,6-0 |
| ITF Women Oeiras | 2018/05/23 09:30 | Panna Udvardy v Lucie Wargnier | 6-4,4-6,2-6 |