 She did not compete at the junior-level championships.Vasilieva competed at her first international event of the season, 2019 JGP Russia, in September, where she earned the bronze medal behind countrywomen Kamila Valieva and Ksenia Sinitsyna and set new personal bests in the free skate and overall.At her next JGP event, 2019 JGP Poland, she finished second overall behind American skater Alysa Liu and qualified the final spot to the 2019–20 Junior Grand Prix Final.