Klaas-Erik Zwering (born 19 May 1981 in Eindhoven, North Brabant) is a former Dutch swimmer and an Olympic medalist. He is currently studying MBO entrepreneurship as he trained in Eindhoven with the PSV Eindhoven swim club. His personal coach was Jacco Verhaeren, who is also coach for Dutch swimming phenom Pieter van den Hoogenband. Zwering originally specialized in the 200 meter backstroke, coming in seventh place in his first senior competition at the European Championships in Istanbul. In the 2000 Olympic Games in Sydney, he came in tenth place in the same event. Recently, however, he's been focusing exclusively on freestyle swimming. In 2001 at the FINA World Championships in Fukuoka, Japan, Klaas-Erik was a member of the silver medal winning 4×100 meter freestyle relay team. Later, along with teammates Pieter van den Hoogenband, Johan Kenkhuis and Mitja Zastrow, Zwering won his first Olympic silver medal in the 4×100 meter freestyle relay in the 2004 Olympic Games in Athens, Greece. Afterwards he retired. See also Dutch records in swimming External links Zwemkroniek online profile References 1981 births Living people Dutch male backstroke swimmers Dutch male freestyle swimmers Olympic swimmers of the Netherlands Swimmers at the 2004 Summer Olympics Swimmers at the 2000 Summer Olympics Olympic silver medalists for the Netherlands Sportspeople from Eindhoven World Aquatics Championships medalists in swimming European Aquatics Championships medalists in swimming Medalists at the 2004 Summer Olympics Olympic silver medalists in swimming Goodwill Games medalists in swimming Competitors at the 2001 Goodwill Games 21st-century Dutch people