Reto Capadrutt took up bobsledding at the age of 14 and was a student at the University of Zurich when, at the 1932 Winter Olympics, he won a silver medal for Switzerland in the two-man with Oscar Geier and finished fourth in the four-man alongside Geier, Hans Eisenhut, and Charles Jenny. Three years later he became world champion in the two-man, with the non-Olympian Emil Diener, and earned bronze in the four-man alongside Fritz Feierabend and the non-Olympians A. Lardi and H. Tami. His next stop was the 1936 Winter Olympics, where he took silver in the four-man with Feierabend, Hans Aichele, and Hans Bütikofer, and placed seventh in the two-man alongside Charles Bouvier. Capadrutt and Aichele captured bronze in the two-man at the 1937 World Championships. While competing in the 1939 Boblet Grand Prix at St. Moritz, Capadrutt went off course, crashed into a tree, and died from his injuries.