 Prior to the IBAF sanctioning the World Cups in 2004, Hamilton also won gold in the 2002 & 2003 World Series with Australia, plus a bronze in 2001.In the 2006 Women's Baseball World Cup Hamilton stole the most bases for the tournament (6 from 6 games).At the time of her retirement, she was the only female baseball player in Australia to have played at every Australian Championships and in every Australian Women's team since their inceptions.