Crocker of the US starts his world record setting men's 100m butterfly final at the World Aquatic Championships in Montreal. Ian Crocker of the U.S. starts his world record setting men's 100m butterfly final at the World Aquatic Championships in Montreal July 30, 2005. Crocker took the gold medal and set a new world record with a time of 50.40 seconds. Michael Phelps of the U.S. took the silver and Andriy Serdinov of the Ukraine took the bronze. REUTERS/Christinne Muschi