Koji Alexander Murofushi, is a former Japanese hammer thrower and sports scientist. He has been among the world elite since the 2001 World Championships, where he won the silver medal. He was the 2004 Olympic champion. In 2011, he was crowned world champion.
Koji Murofushi at the 2011 World Championships in Athletics
The hammer throw is one of the four throwing events in regular outdoor track and field competitions, along with the discus throw, shot put and javelin.
The traditional Highland games version of the event
Scottish hammer throw illustration from Frank R. Stockton's book Round-about Rambles in Lands of Fact and Fancy
Irish American John Flanagan in the hammer throw competition at the Summer Olympics 1908 in London
The contemporary version of the hammer throw