On Sunday, Dana Vollmer should grab her first individual gold in the 100-meter butterfly, over Sweden's Sarah Sjostrom.

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Dana Vollmer, the first woman in history to swim the 100-meter butterfly in under 56 seconds took Gold at the London Olympics.

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Dana Vollmer, a gold medalist as a teenager in 2004, returns after failing to make the 2008 team and is a contender in the 100-meter butterfly.

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She gave way to Rebecca Soni, Dana Vollmer and finally Allison Schmitt, who touched the wall at 3:52:05, nipping 14 hundredths of a second off the previous record.

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