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.
In 1970 he secured the Critérium International award. In 1968, Chappe achieved a notable feat by completing a stage in the Tour de France, but in 1971 his overall performance was characterized as the worst, finishing last.