She attended Leeming Senior High School in the Suburb of Leeming.
Carroll made her international debut at the 2004 Summer Olympics in Athens, where she finished 6th in the 200 m individual medley. She claimed her first international medals later that year at the 2004 FINA Short Course World Championships in Indianapolis, claiming silver and bronze in the 200m and 400m individual medley respectively. She claimed her first long-course medal at the 2005 World Aquatics Championships, claiming a bronze in the 200m individual medley. She also came fourth in the 400m event.
Carroll is a member of the Australian Commonwealth Swimming Team at the 2006 Commonwealth Games in Melbourne where she won a bronze medal in the 200 metres Individual Medley, finishing behind Stephanie Rice and Brooke Hanson, in a time of 2:13.86. She didn't compete in the 400m event due to illness.
She is a student and a member of the Fremantle Port swimming club.
In May 2014, she married her long time partner Sam Mist in a beautiful ceremony at Rottnest Island.
- "Montreal 2005 Results". Archived from the original on 2007-01-28. Retrieved 2007-06-09.
- "Shanghai 2006 results". Archived from the original on 2007-03-06. Retrieved 2007-07-24.
- "7th FINA World Championships - 25m Indianapolis 2004". Archived from the original on 2007-09-26. Retrieved 2007-07-24.
- "Swimming Schedule and Results". Retrieved 2007-08-22.