Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Women Braunschweig | 2018/08/22 10:00 | Diana Marcinkevica v Olga Ianchuk | 3-6,6-4,4-6 |
| ITF Women Leipzig | 2018/08/14 11:25 | Valeriya Strakhova v Diana Marcinkevica | 6-2,6-2 |
| ITF Women Woking | 2018/07/31 13:25 | Francesca Jones v Diana Marcinkevica | 6-4,7-6 |
| ITF Women Horb | 2018/07/27 10:30 | Jaqueline Adina Cristian v Diana Marcinkevica | 6-2,7-5 |
| ITF Women Horb | 2018/07/26 10:00 | Irina Fetecau v Diana Marcinkevica | 2-6,3-6 |
| ITF Women Horb | 2018/07/25 11:35 | Alice Rame v Diana Marcinkevica | 4-6,6-3,2-6 |
| WTA Gstaad Qual | 2018/07/14 15:45 | Kathinka Von Deichmann v Diana Marcinkevica | 6-4,6-3 |
| ITF Women Torino | 2018/07/10 09:50 | Diana Marcinkevica v Nina Potocnik | 0-6,6-7 |
| ITF Women Leipzig | 2018/08/18 10:00 | Barbara Haas v Julia Grabher | 2-6,3-6 |
| ITF Women Leipzig | 2018/08/17 12:00 | Miriam Kolodziejova v Barbara Haas | 2-6,0-6 |
| ITF Women Leipzig | 2018/08/16 10:30 | Raluca Georgiana Serban v Barbara Haas | 2-6,4-6 |
| ITF Women Leipzig | 2018/08/15 09:00 | Lucrezia Stefanini v Barbara Haas | 6-7,3-6 |
| ITF Women Hechingen | 2018/08/08 16:00 | Tamara Korpatsch v Barbara Haas | 2-6,6-1,6-3 |
| ITF Women Bad Saulgau | 2018/08/04 12:00 | Laura Siegemund v Barbara Haas | 4-6,6-3,6-4 |
| ITF Women Bad Saulgau | 2018/08/03 13:40 | Carolina Alves v Barbara Haas | 1-6,5-7 |
| ITF Women Bad Saulgau | 2018/08/02 14:35 | Barbara Haas v Patty Schnyder | 6-3,4-6,6-4 |