Prior to joining The Joffrey Ballet, Christine Rocas danced with Ballet Manila in the Philippines. While there, she had the opportunity to perform in The Nutcracker (Sugar Plum Fairy), Le Corsaire (Medora), La Bayadère (Nikiya), Swan Lake (Odette/Odile), Sleeping Beauty (Bluebird pas de deux), and Don Quixote (Dryad Queen). Rocas participated and won several prestigious awards from differing international ballet competitions. In August 2003, she received a finalist certificate in the Junior Division of the 9th Asian Pacific International Ballet Competition in Tokyo, Japan. She was also chosen as a full scholar in the 2004 Aberdeen International Youth Festival in Aberdeen, Scotland. In 2005, she participated in the Helsinki International Ballet Competition in Helsinki, Finland, where she became a semi-finalist in the junior division. During that year, she received the Arpino Award and was also the silver medalist in the New York International Ballet Competition.

Since joining the Joffrey, Rocas has performed in Apollo, Cinderella(Cinderella and Summer Fairy), The Dream, Giselle (Giselle), The Green Table, Light Rain, Les Présages, The Nutcracker, In the Night, Reflections, Pretty BALLET, Crossed, Age of Innocence, After the Rain, Stravinsky Violin Concerto, Romeo & Juliet (Juliet), and The Merry Widow.