Simon played for the Central Coast Mariners and Sydney FC moved in 2009 to the Australian W-League. In the season 2010/11 she was top scorer and won the Julie Dolan Medal as " Player of the Year."
In 2008 she debuted in the national team. In 2011 she took part in the World Cup in Germany. In the final group match against Norway, they scored two goals and had thus been instrumental in the qualification for the quarter-finals.