 She won two silver medals in the 200 m and 400 m T53 events, and a bronze medal in the 100 m T53 event.At the 2016 Rio Paralympics, she won bronze medals in the women's T53 100 m and 400 m.

In August 1998, Ballard competed at the International Paralympic Committee World Championships in Birmingham, England, where she was part of the gold medal winning Australian women's 4 x100 m and 4x400 m relay teams.Both relay wins set long-standing world records.