Stadium: Court 3 Round: 25
| ITF Women Oeiras | 2018/05/24 17:00 | Lucia Martinez v Romy Koelzer | 7-5,3-6,6-3 |
| ITF Women Oeiras | 2018/05/23 11:15 | Kamilla Kokeladze v Romy Koelzer | 2-6,4-6 |
| ITF Women Wiesbaden | 2018/04/26 09:00 | Romy Koelzer v Kimberley Zimmermann | 3-6,1-6 |
| ITF Women Wiesbaden | 2018/04/25 09:00 | Anna Bondar v Romy Koelzer | 6-2,3-6,6-7 |
| ITF Women Wiesbaden Qual | 2018/04/24 08:00 | Romy Koelzer v Luna Meers | 4-6,6-0,6-1 |
| ITF Women Wiesbaden Qual | 2018/04/23 10:30 | Romy Koelzer v Stephanie Bertschmann | 6-0,6-3 |
| ITF Women Obidos | 2018/04/18 09:30 | Ganna Poznikhirenko v Romy Koelzer | 6-2,6-0 |
| ITF Women Obidos Qual | 2018/04/17 12:45 | Aleksandrina Naydenova v Romy Koelzer | 0-6,7-6,4-6 |
| ITF Women Essen | 2018/06/13 10:30 | Cindy Burger v Polina Leykina | 7-6,6-0 |
| ITF Women Essen | 2018/06/12 10:30 | Polina Leykina v Chanel Simmonds | 6-4,6-1 |
| ITF Women Les Franqueses | 2018/05/24 10:40 | Polina Leykina v Olga Saez Larra | 4-6,3-6 |
| ITF Women Les Franqueses | 2018/05/22 15:10 | Xiyu Wang v Polina Leykina | 4-6,6-2,3-6 |
| ITF Women Khimki | 2018/04/30 15:10 | Polina Leykina v Vera Lapko | 3-6,2-6 |
| ITF Women Santa Margherita | 2018/04/19 13:40 | Polina Leykina v Catalina Pella | 0-6,3-6 |
| ITF Women Santa Margherita | 2018/04/18 14:30 | Chloe Paquet v Polina Leykina | 4-6,6-4,1-6 |
| ITF Women Santa Margherita | 2018/04/14 12:00 | Tamara Zidansek v Polina Leykina | 6-0,6-1 |