
Samantha Stosur is the daughter of Tony and Diane and has two brothers, Dominic and Daniel. At the age of six her house in Gold Coast was destroyed by a flood, causing her family to move to Adelaide. There she started playing tennis, when she was given a racquet for Christmas at the age of eight. While her parents worked long hours at the cafe they had started up, Stosur played at local courts with older brother Daniel, who later encouraged their parents to take her to tennis lessons.
She went away on her first overseas trip at the age of 13, competing in the World Youth Cup in Jakarta, Indonesia.
At 14 she joined the Queensland Academy of Sport (QAS) under Geoff Masters and in 2001, when she was 16, Stosur joined the Australian Institute of Sport tennis program

Due to its power, kick and variety, Stosur's serve is highly considered as the best on the women's tour and even better than Serena Williams. Her first serve, however erratic, reaches more than 118 mph (190 km/h) on regular basis; at the 2008 Hansol Korea Open final she recorded an ace at 122 mph (197 km/h), which she believed to be her fastest service to date. On August 18, 2009 s

Her favorite surface is the hard court.