At multi-sport events, Uganda has enjoyed most of its success in athletics and boxing. Uganda has won seven medals at the Olympics and 39 at the Commonwealth Games, all in these two sports. Some of Uganda's most notable athletes include John Akii-Bua, who won Uganda's first Olympic gold in the 400 metres hurdles at the 1972 Munich Olympics, and Davis Kamoga, a bronze medalist in the 400 metres and the first Ugandan to win a medal at the IAAF World Championships in Athletics (winning a silver at the 1997 World Championships in Athens). Moses Ndiema Kipsiro was the bronze medalist in the 5,000 metres at the 2007 World Championships in Osaka, and Stephen Kiprotich was the winner of the marathon at the 2012 London Olympics and the 2013 World Championships. Notable among female athletes include Dorcus Inzikuru, who was the first Ugandan to win a gold at the World Athletics Championships when she won the 3,000 metres steeplechase at the 2005 World Championships in Helsinki, before adding a gold at the 2006 Commonwealth Games in Melbourne.