Stuart O'Grady is a retired Australian professional road bicycle racer, who rode as a professional between 1995 and 2013. A former track cyclist, O'Grady and Graeme Brown won a gold medal in the Men's Madison at the 2004 Summer Olympics. O'Grady also won Paris–Roubaix in 2007. O'Grady competed in the Tour de France from 1997 and contended for the points classification in the Tour de France known as the green jersey, finishing second in the 1998, 1999, 2001 and 2005 races. He wore the yellow jersey of general classification leader in 1998 and 2001.

Road bicycle racing is the cycle sport discipline of road cycling, held primarily on paved roads. Road racing is the most popular professional form of bicycle racing, in terms of numbers of competitors, events and spectators. The two most common competition formats are mass start events, where riders start simultaneously and race to a set finish point; and time trials, where individual riders or teams race a course alone against the clock. Stage races or "tours" take multiple days, and consist of several mass-start or time-trial stages ridden consecutively.