Stadium: COURT 2 Round: 46 Ground: Hardcourt indoor
| WTA Moscow | 2018/10/13 16:35 | Koval, Vlada v Lisicki, Sabine | 3-6,7-5,7-6 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/20 05:00 | Koval, Vlada v Shusharina, Maria | 3-6,6-1,3-6 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/19 04:00 | Koval, Vlada v Ania Hertel | 6-2,6-3 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/17 03:30 | Koval, Vlada v Khabibulina, Albina | 6-1,6-3 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/14 07:00 | Koval, Vlada v Daria Lodikova | 3-6,3-6 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/13 05:00 | Koval, Vlada v Dmitrichenko, Yekaterina | 6-2,6-2 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/12 04:00 | Koval, Vlada v Sevil Yuldasheva | 6-3,6-3 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/10 06:30 | Koval, Vlada v Karimjanova, Yasmina | 6-1,6-0 |
| WTA Moscow | 2018/10/13 15:05 | Monova, Polina v Vikhlyantseva, Natalia | 1-6,6-7 |
| WTA - Linz | 2018/10/08 10:35 | Anna Karolina Schmiedlova v Vikhlyantseva, Natalia | 6-1,6-2 |
| WTA - Linz | 2018/10/07 17:30 | Anna Kalinskaya v Vikhlyantseva, Natalia | 1-6,2-6 |
| WTA Tashkent | 2018/09/24 05:00 | Tatjana Maria v Vikhlyantseva, Natalia | 6-1,6-2 |
| US Open Women | 2018/08/27 15:00 | King, Vania v Vikhlyantseva, Natalia | 7-6,6-3 |
| WTA Cincinnati Qual | 2018/08/12 17:30 | Vikhlyantseva, Natalia v Allie Kiick | 5-7,1-6 |
| WTA Cincinnati Qual | 2018/08/11 22:30 | Flipkens, Kirsten v Vikhlyantseva, Natalia | 3-6,3-6 |
| WTA Washington | 2018/08/01 19:30 | Brady, Jennifer v Vikhlyantseva, Natalia | 6-1,6-4 |