Olympics: America's Dana Vollmer Sets World Record in Women's 100m Butterfly

America's Dana Vollmer took the limelight in the pool at the London Olympics on July 30, 2012 as she wiped out the world record in women's 100 meters butterfly final to claim a gold medal.

Vollmer touched home in 55.98, toppling the previous world mark of 56.06 seconds set by Swedish world champion Sarah Sjostrom at the 2009 World Championships.

Chinese sensation Lu Ying came from behind to take a silver at 56.87. The bronze medal went to Australian Alicia Coutts who finished 56.94.

Vollmer, winner of the event at the 2011 Shanghai World Championships, was sluggish off blocks with a second lowest reaction time. But she managed to usurp the lead soon after and never look back to touch the wall first.

It is the second gold medal the powerhouse US took in swimming pool, following the one won by Ryan Lochte in men's 400 meters individual medley on the opening day on July 29.