Career
At the age of six, Blazek began playing handball with Hypo Niederösterreich in their junior team As she grew with the club, she showed great potential, which was rewarded with selection to the Austrian national team in 2004 at the age of 17. The 2008 European Championship was the third such top European event for Petra.
She has participated in two World Championships and is also an EHF Champions League finalist.