Kostornaya received 162.14 for a free program and won the world record in terms of points - 247, 59.
The second place was taken by another Russian woman - Anna Shcherbakova (240.92). The third was her compatriot Alexandra Trusova (233.18).
The current Olympic champion Alina Zagitova took sixth place in the free program (125.63) and in terms of points (205.23).
Earlier it was reported that Kostornaya set a new world record for the total points for two rentals.