Koval has a career-high WTA singles ranking of 339, achieved on 26 July 2021.

She also has a career-high WTA doubles ranking of 323, reached on 7 March 2022.

On the ITF Junior Circuit, she has a career-high combined ranking of 63, achieved on 30 January 2017.

Koval made her Fed Cup debut for Russia in 2019.

This biographical article relating to Russian tennis is a stub.