Stadium: Court 2 Round: 25 Ground: Clay
| WTA Moscow | 2018/10/13 07:00 | Valentyna Ivakhnenko v Harriet Dart | 1-6,3-6 |
| ITF Women Saint Malo | 2018/09/18 16:15 | Valentyna Ivakhnenko v Martina Trevisan | 1-6,6-7 |
| ITF Women Biarritz | 2018/09/12 15:00 | Valentyna Ivakhnenko v Irina Maria Bara | 4-6,4-6 |
| ITF Women Almaty | 2018/08/31 04:55 | Valentyna Ivakhnenko v Yuliya Hatouka | 4-6,3-6 |
| ITF Women Almaty | 2018/08/30 06:50 | Valentyna Ivakhnenko v Nastja Kolar | 3-6,6-2,7-5 |
| ITF Women Almaty | 2018/08/29 07:05 | Valentyna Ivakhnenko v Ekaterina Kazionova | 6-1,6-2 |
| ITF Women Almaty | 2018/08/28 09:55 | Valentyna Ivakhnenko v Sofya Lansere | 6-4,6-3 |
| US Open Women | 2018/08/21 15:00 | Valentyna Ivakhnenko v Marta Kostyuk | 6-4,6-7,6-7 |
| ITF Women Santa Margherita | 2018/09/26 12:00 | Polina Leykina v Ludmilla Samsonova | 3-6,3-6 |
| ITF Women Santa Margherita | 2018/09/18 13:50 | Paula Badosa v Polina Leykina | 6-3,6-2 |
| ITF Women Santa Margherita | 2018/09/12 12:00 | Polina Leykina v Elena-Gabriela Ruse | 2-6,6-7 |
| ITF Women Sofia | 2018/09/04 08:35 | Polina Leykina v Cristina Dinu | 4-6,1-6 |
| ITF Women Almaty | 2018/08/28 07:35 | Anna Danilina v Polina Leykina | 1-6,6-1,6-3 |
| ITF Women Leipzig | 2018/08/15 11:05 | Polina Leykina v Lena Papadakis | 6-7,2-6 |
| ITF Women Warsaw | 2018/08/10 11:00 | Katarzyna Kawa v Polina Leykina | 3-6,6-2,6-1 |
| ITF Women Warsaw | 2018/08/09 16:35 | Irina Fetecau v Polina Leykina | 4-6,1-6 |