Kostornaia won both short (76.55) and free routines (159.45), with 236.00 points total.
Zagitova won silver medal with a total of 216.06 points, while US competitor Mariah Bell got bronze with 212.89.
Alena Kostornaia completes the tri-fector with her win at Internationaux de France. All three of last year's superstar Russian juniors have each claimed a senior Grand Prix title this season - all in succession. #soimpressive #nextgenhasarrived #GPFigure pic.twitter.com/T5aCTYmtK3— IFS Magazine (@ifsmagazine) November 2, 2019
Another representative of Russia, Maria Sotskova, was 11th with 144.89 points.