Koji Murofushi at the 2011 World Championships in Athletics
Early life[change | change source]
Murofushi was born in Numazu, Shizuoka Prefecture. His family were international sports competitors. His early interest in the hammer was encouarged by his father, Shigenobu Murofushi, who is an Olympic athlete and Asian Games champion. He is the brother of Yuka Murofushi, who is also an Olympian.