Career
Heaston was a participant in the 2008 Olympic Games where she placed 23rd in the qualifying round with a throw of 17.34m. Prior to her Olympic appearance, she was a runner-up at the Olympic Trials with a throw of 18.34m. At the 2004 Olympic Games Heaston became the first woman ever to compete at the ancient site Olympia.
She finished thirteenth at the 2001 Summer Universiade and seventh at the 2006 World Athletics Final and the 2007 World Athletics Final.