In 1970 he won the Critérium International. In 1968, Chappe won a stage in the Tour de France, but in 1971 he was the lanterne rouge.
He achieved success in 1970 with the Critérium International title, while in 1968 he had a notable achievement by winning a stage in the Tour de France. However, in 1971 his performance was marked by being the final rider to complete the race.