Career
Her career high Women's Tennis Association singles ranking is 232, which she reached on 23 February 2004. Haidner made her Women's Tennis Association tour debut at the 2003 Linz Open, partnering Adriana Jerabek in doubles, but lost her Quarterfinals match against fellow Marion Bartoli and Silvia Farina Elia. And 2008 Gastein Ladies partnering Hülya Esen in doubles, but lost her first round.
Stefanie Haidner retired from tennis 2015.
Singles (0–5)
Doubles (18–25).
