Rachel Richardson began her training with John Grensback at the Oregon Ballet Academy and continued her training at the Eugene Ballet Academy under the direction of Toni Pimble. In 2009, she was awarded a scholarship to attend The Rock School for Dance Education's year round program in Philadelphia, under the direction of Bojan and Stephanie Spassoff. While at The Rock School she competed in Youth America Grand Prix and won the silver medal at the New York City finals in 2013. Richardson has received scholarships to multiple summer intensives including Pacific Northwest Ballet, Bolshoi Ballet, Houston Ballet, Royal Ballet School and San Francisco Ballet.
She has performed classical variations from Raymonda, The Nutcracker, Grand pas Clasique, Giselle, Paquita, Esmeralda, and Swan Lake, as well as works by Susan Jaffe, Antony Tudor, and Bruce Steivel.
In 2013 Richardson joined American Ballet Theatre's Studio Company under the direction of Kate Lydon. She joined ABT as an apprentice in January 2015 and became a member of the corps de ballet in June 2015.