He became Olympic champion in the 100 km team time trial in 1968 with Joop Zoetemelk, René Pijnen and Fedor den Hertog; at the same Games he came in 11th in the road race.
In 1968, he achieved Olympic gold in the 100 km team time trial with teammates Joop Zoetemelk, René Pijnen, and Fedor den Hertog. He also placed 11th in the road race at the same Olympics.