Stadium: Show Court Round: 45
| 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 Santa Margherita Qual | 2018/03/13 13:00 | Manon Arcangioli v Katharina Gerlach | 6-3,6-3 |
| ITF Women Mallorca | 2018/03/02 09:00 | Ylena In-Albon v Katharina Gerlach | 5-7,7-5,6-1 |
| ITF Women Balatonboglar | 2018/05/04 09:45 | Kaja Juvan v Anna Zaja | 6-3,6-1 |
| ITF Women Balatonboglar | 2018/05/03 11:30 | Anna Zaja v Anna-Giulia Remondina | 6-1,7-6 |
| ITF Women Balatonboglar | 2018/05/02 09:00 | Anna Zaja v Amina Anshba | 7-5,6-1 |
| ITF Women Balatonboglar | 2018/05/01 14:00 | Anna Zaja v Veronika Erjavec | 6-7,7-6,6-2 |
| WTA Stuttgart Qual | 2018/04/22 13:50 | Carina Witthoeft v Anna Zaja | 2-6,6-0,6-3 |
| WTA Stuttgart Qual | 2018/04/21 17:50 | Anna Zaja v Katharina Hobgarski | 6-4,6-4 |
| ITF Women Santa Margherita | 2018/04/12 16:45 | Tamara Zidansek v Anna Zaja | 6-4,7-5 |
| ITF Women Santa Margherita | 2018/04/10 15:00 | Marie Benoit v Anna Zaja | 3-6,4-6 |