In 2007, Ballinger began playing rugby league for Ivanhoes in Cairns, winning the CDRL Women's League. In 2010, she was named the CDRL Women's Player of the Year.[4]
In 2011, she made her debut for Australia in their 42–14 win over Samoa in Apia.[5]
On 13 October 2018, she played her final game for Australia, winning Player of the Match in a 26–24 win over New Zealand at Mt Smart Stadium.[10]
In May 2019, she represented Queensland Country at the NRL Women's National Championships. In August 2019, she returned to the Broncos NRLW squad, but did not play a game for the side.[11][12]
On 11 February 2020, she announced her retirement from State of Origin, after 11 years of representing Queensland.[13] In March 2020, she joined the Tweed Heads Seagulls in the newly established QRL Women's Premiership.[14]