Round: 25
| ITF Women Leipzig | 2018/08/14 09:00 | Jule Niemeier v Poznikhirenko, Ganna | 6-0,6-3 |
| ITF Women Warsaw | 2018/08/10 09:00 | Poznikhirenko, Ganna v Maja Chwalinska | 2-6,2-6 |
| ITF Women Warsaw | 2018/08/08 15:15 | Poznikhirenko, Ganna v Yudanov, Marina | 2-6,7-6,6-3 |
| ITF Women Warsaw | 2018/08/06 16:00 | Poznikhirenko, Ganna v Kania, Paula | 6-4,6-4 |
| Hodmezovasarhely, Simples W-WITF-HUN-06A | 2018/06/12 11:05 | Sofya Lansere v Poznikhirenko, Ganna | 3-6,6-4,6-1 |
| ITF Women Brescia | 2018/06/06 10:55 | Jessica Pieri v Poznikhirenko, Ganna | 6-4,6-4 |
| WTA Strasbourg Qual | 2018/05/19 09:00 | Marina Melnikova v Poznikhirenko, Ganna | 6-1,6-4 |
| WTA Strasbourg Qual | 2018/05/18 09:00 | Vitis, Wallis v Poznikhirenko, Ganna | 3-6,2-6 |
| ITF Women Zagreb | 2018/09/02 14:00 | Ekaterina Yashina v Nina Potocnik | 1-6,2-6 |
| ITF Women Budapest | 2018/08/28 13:20 | Cadantu, Alexandra v Nina Potocnik | 6-0,7-5 |
| ITF Women Budapest | 2018/08/27 10:00 | Paula Ormaechea v Nina Potocnik | 4-6,4-6 |
| ITF Women Budapest | 2018/08/26 15:05 | Miriam Bulgaru v Nina Potocnik | 5-7,6-7 |
| ITF Women Budapest | 2018/08/25 10:50 | Dea Herdzelas v Nina Potocnik | 3-6,4-6 |
| ITF Women Leipzig | 2018/08/13 12:00 | Nina Potocnik v Iva Primorac | 7-6,3-6,3-6 |
| ITF Women Leipzig | 2018/08/12 11:00 | Nina Potocnik v Ruppert, Lena | 6-2,6-3 |
| ITF Women Baja | 2018/07/28 12:15 | Paula Ormaechea v Nina Potocnik | 6-3,7-5 |