Calista Ruat is from Paris, France. She trained at the Paris Opera Ballet School under the direction of Claude Bessy. Her teachers were Carole Arbo and Attilio Labis, and she was coached by Noella Pontois. Ms. Ruat joined Paris Opera Ballet as a corps de ballet member in 2010. She worked with Benjamin Millepied, director of dance, and was coached by Sebastien Marcovici. She joined Pacific Northwest Ballet as a corps de ballet member in 2017.
While a member of Paris Opera Ballet, Ms. Ruat performed works by Frederick Ashton, George Balanchine, Jean Coralli and Jules Perrot, Birgit Cullberg, Michel Fokine, Jiri Kylian, Pierre Lacotte, Kenneth MacMillan, José Martinez, Leonide Massine, Wayne McGregor, John Neumeier, Vaslav Nijinsky, Rudolf Nureyev, Roland Petit, and Angelin Preljocaj.