Swimming at the London 2012 Olympics (405 images)

Michael Phelps of the United States looks at the scoreboard after his heat in the Men's 200M Butterfly at the London 2012 Summer Olympics on July 30, 2012 in Stratford, London. Phelps's time of 1:55.53 qualified him for the semifinal. UPI/Brian Kersey

Chad le Clos of South Africa reacts after his heat in the Men's 200M Butterfly at the London 2012 Summer Olympics on July 30, 2012 in Stratford, London. le Clos qualified with a time of 1:55.23 in his heat. UPI/Brian Kersey

Tyler Clary of the the United States swims his heat in the Men's 200M Butterfly at the London 2012 Summer Olympics on July 30, 2012 in Stratford, London. Clary's time of 1:54.96 was the second-best qualifying time in the event. UPI/Brian Kersey

Kaio Almeida of Brazil begins his heat in the Men's 200M Butterfly at the London 2012 Summer Olympics on July 30, 2012 in Stratford, London. Almeida's time of 1:56.99 did not qualify for the semifinals. UPI/Brian Kersey