Stadium: Court 6 Round: 25
| 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 Stuttgart | 2018/06/28 10:00 | Pemra Ozgen v Diana Marcinkevica | 6-3,6-2 |
| ITF Women Warsaw | 2018/08/12 10:30 | Victoria Bosio v Olga Ianchuk | 3-6,6-4,3-6 |
| ITF Women Warsaw | 2018/08/11 15:05 | Katarzyna Kawa v Olga Ianchuk | 6-7,4-6 |
| ITF Women Warsaw | 2018/08/10 11:30 | Olga Ianchuk v Julia Stamatova | 2-6,6-2,6-3 |
| ITF Women Warsaw | 2018/08/09 13:00 | Olga Ianchuk v Alexandra Perper | 4-6,6-4,7-6 |
| ITF Women Warsaw | 2018/08/07 16:40 | Olga Ianchuk v Marta Lesniak | 7-5,6-3 |
| ITF Women Bad Saulgau | 2018/08/04 15:10 | Alexandra Ignatik v Olga Ianchuk | 6-0,1-6,6-4 |
| ITF Women Bad Saulgau | 2018/08/03 12:25 | Bibiane Schoofs v Olga Ianchuk | 1-6,7-5,3-6 |
| ITF Women Bad Saulgau | 2018/08/02 11:20 | Stephanie Wagner v Olga Ianchuk | 7-5,0-6,0-6 |