Career
Gradwohl started her sporting career as a cyclist, until she began long-distance running at the Vienna Marathon. Gradwohl did not only set a national record for her best possible time, but also reached a qualifying standard time of 2:33:00, which made her eligible to compete at the 2008 Summer Olympics in Beijing. At age thirty-five, Gradwohl made her official Olympic debut, and competed in the women"s marathon.
She ran and finished the race in fifty-seventh place, with a time of 2:44:24, just fourteen minutes behind her personal best set in Linz.
In the following year, Gradwohl continued her winning streak at the Florence and Linz marathon. On April 29, 2010, Gradwohl retired from her sporting career, after refusing to take a doping test, while on a vacation with her friends in Croatia.
According to NADA director Andreas Schwab, refusing to undergo a doping test was considered a positive test, and would be an obvious breach of the rules imposed in every sporting competition. Gradwohl later admitted to the media reports that she was heavily involved in a personal relationship with former Nordic skiing coach Walter Mayer, who had been banned by the International Olympic Committee for a blood-doping scandal at the 2002 Winter Olympics in Salt Lake City, Utah, and also, for his alleged role in another doping scandal that rocked the Austrian national team at the 2006 Winter Olympics in Turin, Italy.