[citation needed] Singles: Doubles: In 2016, Masarova reached the juniors semifinals of the Australian Open, where she lost to defending champion Tereza Mihalíková.

Later that year, she won the French Open junior title by defeating top-seed Olesya Pervushina in the semifinals and second-seed Amanda Anisimova in the final.

[citation needed] Masarova made her WTA Tour singles main-draw debut in 2016 at the Gstaad Ladies Championship beating former world No.

[5] Partnering with Aliona Bolsova, Masarova won the doubles at the Open Internacional de Valencia, defeating Alexandra Panova and Arantxa Rus in the final.

[9] Masarova received a wildcard for the main draw of the WTA 1000 Madrid Open where she reached the third round with wins over compatriot Cristina Bucșa[10] and 20th seed Donna Vekić.