In July 2009, Petkovic won the first WTA Tour singles title of her career at the International event in Bad Gastein, Austria after a straight sets win over Ioana Raluca Olaru in the final.
1, Maria Sharapova[3] in the fourth round to reach her first Grand Slam quarterfinal where she lost in straight sets to the ninth seed and eventual runner-up, Li Na.
[7] Two months later, she won her second career singles title at the Internationaux de Strasbourg[8] before reaching her second consecutive Grand Slam quarterfinal at the French Open where she lost to Sharapova in straight sets, winning just three games.
In June, Petkovic advanced to her first Grand Slam semifinal at the French Open, defeating tenth seed and 2012 finalist Sara Errani[16] en route before losing to the eventual runner-up, Simona Halep, in straight sets.
[18] Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win–loss records.