Molik began in 1996 in her native Australia at the ITF Women's Circuit. There, she won her first tournament in 1998, during the year they brought it to seven singles and eight doubles titles. In the same year she had in qualifying for the Australian Open her first appearance on the WTA tour.
In 2005 she was crowned equal to their first final at a Grand Slam tournament with a win. She won with Svetlana Kuznetsova the doubles competition at the Australian Open. In June 2007, she also won at the French Open the doubles title, this time on the side of the Italian Mara Santangelo. Overall, they won on the tour five singles and seven doubles titles. Your highest positions in the WTA ranking she had with Rank 8 in singles and Rank 6 in a double each in 2005.
At the 2004 Olympics in Athens, she won the bronze medal in singles. Also in Sydney (2000 ) and Beijing ( 2008), she was in Australia at the start. They also played for their country since 1999 many years in Fed Cup.
In September 2008, Molik announced its preliminary End of career. A year later she went to work with an ITF tournament victory in double back and also won three ITF singles titles. In 2011 she returned to the professional circus finally back.
Since 18 January 2013, it is team leader of the Australian Fed Cup team.