Stadium: Court 4 Round: 54
| ITF Women Andijan Qual | 2018/05/26 05:55 | Koval, Vlada v Yusupova, Guzal | 6-7,6-4,6-2 |
| ITF Women Khimki Qual | 2018/04/29 11:45 | Koval, Vlada v Zeleva, Valeriya | 6-3,4-6,0-6 |
| ITF Women Khimki Qual | 2018/04/28 10:10 | Golubovskaya, Polina v Koval, Vlada | 3-6,2-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/28 07:30 | Flink, Varvara v Koval, Vlada | 6-2,6-4 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/21 08:35 | Koval, Vlada v Caroline Romeo | 7-6,5-7,1-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/13 08:55 | Koval, Vlada v Rebecca Sramkova | 7-5,2-6,3-6 |
| Moscow, Singles W-WITF-RUS-05A | 2018/03/02 11:05 | Koval, Vlada v Sofya Lansere | 5-7,4-6 |
| Moscow, Singles W-WITF-RUS-05A | 2018/03/01 10:05 | Marozava, Lidziya v Koval, Vlada | 5-7,6-7 |
| ITF Women Andijan Qual | 2018/05/26 06:45 | Yahshilikova, Aziza v Vergazova, Kristina | 7-5,6-2 |
| ITF Women Karshi Qual | 2018/04/21 08:30 | Grinchishina, Alexandra v Yahshilikova, Aziza | 6-0,6-1 |
| ITF Women Andijan Qual | 2017/05/27 06:00 | Beatrice Gumulya v Yahshilikova, Aziza | 6-1,6-1 |