Individually, she is the 2020 Olympic all-around and floor exercise bronze medalist, 2019 European Games all-around and uneven bars champion, the 2019 World all-around and floor exercise bronze medalist, the 2017 European champion on the floor exercise and 2021 European champion on uneven bars, a nine-time individual European Championships medalist, a four-time European Games medalist, and a two-time Russian national all-around champion (2016, 2018). At the junior level, Melnikova also won gold medals at the 2014 European Championships in the team, all-around, and balance beam events and was the 2014 Russian junior all-around national champion. She has been captain of the Russian women's national gymnastics team since 2017.