David Charles Berkoff is a former backstroke

Backstroke

The backstroke, also sometimes called the back crawl, is one of the four swimming styles regulated by FINA, and the only regulated style swum on the back. This has the advantage of easy breathing, but the disadvantage of swimmers not being able to see where they are going. It is also the only...

 swimmer from the United States, who won a total number of four Olympic medals during his career. He is best known for his powerful underwater start, the eponymous "Berkoff Blastoff". His brother, Kevin Berkoff, lives in Philadelphia, Pennsylvania and works as Head Coach of William Penn Charter School's Swim team.

In 2005 Berkoff was made a member of the International Swimming Hall of Fame

International Swimming Hall of Fame

The International Swimming Hall of Fame and Museum is a history museum and hall of fame, located at One Hall of Fame Drive, Fort Lauderdale, Florida, United States, operated by private interests serving as the central point for the study of the history of swimming in the United States and around...

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