She has competed in four Olympic Games (2004, 2008, 2012 and 2016), three Commonwealth Games (2006, 2010 and 2014) and two Hockey World Cups (2010 and 2014).
She was named on the FIH's All-Star Team in 2010 and was Hockey New Zealand's player of the year in 2012.Whitelock was born in Palmerston North, and is of Rangitane descent.
She married Crusaders rugby player George Whitelock in December 2013.