London 2012 - The expression on 15-year-old Lithuanian swimmer Ruta Meilutyte's face says it all: did I really just win gold in the 100m breaststroke?

London 2012 - women's 100m gold medallist Dana Vollmer makes a splash at the Aquatics Centre even before the race has started

London 2012 - 15-yaer-old Ruta Meilutyte of Lithuania can finally believe she won the 100m breaststroke gold, as the evidence is in her hands.

London 2012 - Team USA's Dana Vollmer stretches ahead of taking gold in the the women's 100m butterfly. It was a second taste of gold for Vollmer, a member of the champion USA 4x200m freestyle relay team at Athens 2004.

Ryosuke Irie of Japan prepares to race in the men's 200m backstroke at the Aquatics Centre. Irie took silver to add to a bronze in the 100m backstroke

London 2012 - Team USA's Missy Franklin takes gold in the 100m backstroke at the Aquatics Centre.

London 2012 - Sarah Sjostrom of Sweden walks out to take her place in the Women's 100m butterfly final at the Aquatics Centre, in which she came fourth.

London 2012 - Team USA's Dana Vollmer can relax after taking gold in the Women's 100m butterfly final with a world record of 55.98s.

London 2012 - swimmers battle it out in the women's 100m butterfly at the Aquatics Centre.

London 2012 - women's 100m butterfly bronze medallist Alicia Coutts of Australia and second-placed Ying Lu of China flank winner Dana Vollmer of the USA on the podium at the Aquatics Centre.