Round: 44 Ground: Hardcourt outdoor
| ITF Women Sozopol | 2017/10/01 07:00 | Kowall, Karolina v Shleptsova, Anastasiya | 2-6,6-1,5-7 |
| ITF Women Varna | 2017/09/16 07:00 | Peruhova, Lyuboslava v Kowall, Karolina | 6-4,6-4 |
| ITF Women Middelkerke Qual | 2017/08/26 13:00 | Meers, Luna v Kowall, Karolina | 6-1,6-3 |
| ITF Women Denain Qual | 2017/07/02 15:55 | Kowall, Karolina v Armitano, Mathilde | 2-6,2-6 |
| ITF Women Warsaw Qual | 2017/06/18 07:00 | Jegiolka, Justyna v Kowall, Karolina | 6-4,6-2 |
| ITF Women Essen | 2017/06/04 11:00 | Kowall, Karolina v Castille, Cindy | 4-6,4-6 |
| ITF Women SJD Campos | 2017/04/01 13:00 | Kowall, Karolina v Kokeladze, Kamilla | 1-6,0-6 |
| Campinas, Singles W-WITF-BRA-03A | 2017/03/26 15:30 | Tomita, Giovanna v Kowall, Karolina | 6-1,6-1 |
| ITF Women Tel Aviv | 2017/06/30 07:00 | Nikolaev, Valeria v Despina Papamichail | 0-6,0-6 |
| ITF Women Tel Aviv | 2017/06/29 07:00 | Nikolaev, Valeria v Totka, Naomi | 6-4,6-3 |
| ITF Women Herzlia | 2017/06/20 06:30 | Nikolaev, Valeria v Vlada Ekshibarova | 4-6,4-6 |
| ITF Women Akko | 2017/05/02 07:00 | Veselinovic, Ana v Nikolaev, Valeria | 6-2,6-1 |
| ITF Women Heraklion | 2017/03/20 07:30 | Nikolaev, Valeria v Almudena S-L Fernandez | 3-6,6-4,4-6 |
| ITF Women Heraklion | 2017/03/19 08:00 | Nikolaev, Valeria v Kern, Celine | 6-4,6-1 |
| ITF Women Heraklion | 2017/03/14 07:30 | Nikolaev, Valeria v Weiss, Alena | 1-6,1-6 |
| ITF Women Heraklion | 2017/03/09 07:30 | Nikolaev, Valeria v Oana Georgeta Simion | 2-6,3-6 |