U.S. swimmer Dana Vollmer

Dana

Vollmer won gold and broke a world record after completing the 100 butterfly at

the Aquatics Centre in London.

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: gold medallist Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Al Bello/Getty Images)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: gold medallist Dana Vollmer of the United States poses on the podium during the medal ceremony after setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Clive Rose/Getty Images)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States competes on her way to winning the gold medal and setting a new world record in the Womans 100m Butterfly during the 2012 London Olympics at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Ian MacNicol/Getty Images)

Dana Vollmer

United States' Dana Vollmer competes to win gold and set a new world record in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. Vollmer set a new world record with a time of 55.98.(AP Photo/Michael Sohn)

Olympics Day 1 - Swimming

LONDON, ENGLAND - JULY 28: Dana Vollmer of the United States competes in the second semifinal heat of the Women's 100m Butterfly on Day 1 of the London 2012 Olympic Games at the Aquatics Centre on July 28, 2012 in London, England. (Photo by Adam Pretty/Getty Images)

Dana Vollmer

United States' Dana Vollmer competes in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. Vollmer set a new world record with a time of 55.98 (AP Photo/Mark J. Terrill)

Dana Vollmer

XXX. Olympische Sommerspiele, Schwimmen, Finale, 100 Meter Schmetterling der Frauen, Sonntag (29.07.12), Aquatics Centre, London, Grossbritannien: Dana Vollmer (USA) schwimmt zum Sieg in Weltrekordzeit. (zu dapd-Text) Foto: Daniel Kopatsch/dapd

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record in the Womans 100m Butterfly during the 2012 London Olympics at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Ian MacNicol/Getty Images)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer (R) of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Clive Rose/Getty Images)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Clive Rose/Getty Images)

Dana Vollmer

United States' Dana Vollmer celebrates after her gold medal win in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Daniel Ochoa De Olza)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Jamie Squire/Getty Images)

Dana Vollmer

United States' Dana Vollmer reacts after winning gold and setting a world record in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. Vollmer set a new world record with a time of 55.98. (AP Photo/Mark J. Terrill)

Dana Vollmer

United States' Dana Vollmer, right, reacts after winning gold and setting a world record in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. Vollmer set a new world record with a time of 55.98. (AP Photo/Mark Duncan)

Dana Vollmer

United States' Dana Vollmer celebrates after her gold medal win in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Daniel Ochoa De Olza)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Al Bello/Getty Images)

Olympics Day 2 - Swimming

LONDON, ENGLAND - JULY 29: Dana Vollmer of the United States celebrates after winning the gold medal and setting a new world record time of 55.98 seconds in the Women's 100m Butterfly final on Day 2 of the London 2012 Olympic Games at the Aquatics Centre on July 29, 2012 in London, England. (Photo by Al Bello/Getty Images)

Olympics Day 1 - Swimming

LONDON, ENGLAND - JULY 28: Dana Vollmer of the United States prepares for the start of the second semifinal heat of the Women's 100m Butterfly on Day 1 of the London 2012 Olympic Games at the Aquatics Centre on July 28, 2012 in London, England. (Photo by Adam Pretty/Getty Images)

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