Tags: Swimmer.
David Charles Berkoff (born November 30 1966) is an American former competition swimmer Olympic champion and former world record-holder. Berkoff was a backstroke specialist who won a total of four Olympic medals during his career at two different Olympic Games. He is best known for his powerful underwater start the eponymous Berkoff Blastoff.At the 1988 Summer Olympics in Seoul South Korea he won a gold medal by swimming the backstroke leg for the winning U.S.