In 2020, Karina joined Russian National Reserve Team as a senior group gymnast.

Reserve group took part in Grand Prix Tartu in February.

Karina and her teammates placed second in Group All-Around competition after Uzbekistan and took gold medals in both Apparatus Finals.

In June, she competed at the 2021 European Championships in Varna, Bulgaria and won gold medal in Group All-around and Team competition and silver in 5 Balls final.

[3] In July, the national coach Irina Viner, announced that the fifth place of the Russian group that will compete in the Olympic Games of Tokyo 2020, will be occupied by Alisa Tishchenko, leaving out Metelkova and Olya Karaseva