Mirinda started sports at an early age, playing basketball and lots of other school sports. In 2000, at the age of 19, she competed in her first triathlon. Even though she did not have a background in swimming, running, or biking, she made the Australian Junior Elite Team in 2001. Mirinda went on to represent Australia at the ITU Triathlon World Championships from 2001 to 2005 earning silver medals in 2002 and 2003. Now Mirinda focuses on the longer distance. She won the Nice Long Course triathlon in 2004 and won silver at the ITU Long Course World Championships in Denmark in 2005. In 2006, Mirinda claimed the St Croix and Baja titles early in the year, then won bronze at the Ironman 70.3 World Championships. In 2007, Mirinda came second in 4 half Ironman distance triathlons before winning the Ironman 70.3 World Championships in world record time. 2008 saw five Ironman 70.3 wins and 2009 another 4 Ironman 70.3 wins and a second place and run course record in her first attempt at the full Ironman distance in Kona. With 15 Ironman 70.3 wins to date, Mirinda has clearly claimed the 70.3 distance as her own and leaves no doubt that she's a force to be reckoned with in Ironman racing.