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.

At the 2001 Goodwill Games, the athletics events were held at the ANZ Stadium in Brisbane, Australia from 4–7 September. A total of 44 events were contested, with 22 events each for male and female athletes.