During her time there she worked with choreographer Mark Godden and danced in leading roles such as Medora in Le Corsaire, the Paquita pas de trois, Lise in La fille mal gardée and the Sugarplum Fairy in The Nutcracker.

Lead roles she danced include Nikiya in La Bayadère, Kitri in Don Quixote and Columbine in Harlequinade.

[5] Boylston also served as Jennifer Lawrence's dance double in 2018 film Red Sparrow, choreographed by Justin Peck.

[7] In 2019, she helped breaking the Guinness World Record for the most dancers ever to go on pointe at the same time, alongside James Whiteside on Live with Kelly and Ryan.

[8] Alastair Macaulay of the New York Times noted Boylston portrayal of Lise in La Fille mal gardée is "intimate, heartfelt, rapturous.