[3] La Cour joined the Royal Danish Ballet in 2000,[4] and was soon cast in solo roles.

[6] In his career, he had danced 60 ballets, including works by George Balanchine, Jerome Robbins, Peter Martins, August Bournonville, Christopher Wheeldon, Justin Peck, Alexei Ratmansky, Benjamin Millepied, Jorma Elo, Susan Stroman, Lauren Lovette, Boris Eifman, Robert Binet and Richard Tanner.

[7] He also originated roles in some ballets, such as Wheeldon's Shambards and After the Rain,[8][9] Ratmansky's Voices, Peck's The Most Incredible Thing and Lovette's Not Our Fate.

[10][11][12] In January 2020, la Cour became the artistic director of the Commack, New York-based Frank Ohman School of Ballet and New York Dance Theatre.

[7] He retired from the New York City Ballet in October 2021, and danced Balanchine's Monumentum pro Gesualdo, Movements for Piano and Orchestra and Wheeldon's After the Rain at his farewell performance.