Through the annual NDT choreographic workshops, Jirà Kylián invited him to create a number of ballets for all three sectors of NDT.
As a choreographer, Delcroix has created over 40 works and re-staged further pieces by himself and Jirà Kylián all over the world.In 2001, he was made Chevalier dans l'Ordre des Arts et des Lettres .