The 2011 Santos Tour Down Under was the 13th edition of the Tour Down Under stage race. It took place from 18 to 23 January in and around Adelaide, South Australia, and was the first race of the 2011 UCI World Tour. The Tour was preceded by the Cancer Council Classic race, on Sunday, 16 January, that consisted in a circuit of 30 laps around the Rymill Park in Adelaide's East End, totaling 51 kilometres (32 mi)