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South Africa's Cameron van der Burgh celebrates his gold medal win in the men's 100-meter breaststroke 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)

South African swimmer Cameron van der Burgh

The South African made waves by destroying the rest of the men's 100-meter breaststroke field en route to the gold medal and new world record. He won his country's first gold at the 2012 Olympics and was also its first male swimmer to win an individual gold.