Participants throw coloured paint into the air after finishing The Color Run outside Wembley Stadium in London, July 14, 2013. The Color Run is a five kilometre, un-timed race, held in cities across the US and also worldwide, with the aim of promoting healthy living, and the organizers choose a charity to benefit in each of the cities the run visits. Participants are doused from head to toe in different colours at each kilometre. [Photo/Agencies]

A runner is sprayed with paint powder during The Color Run outside Wembley Stadium in London, July 14, 2013. The Color Run is a five kilometre, un-timed race, held in cities across the US and also worldwide, with the aim of promoting healthy living, and the organizers choose a charity to benefit in each of the cities the run visits. Participants are doused from head to toe in different colours at each kilometre. [Photo/Agencies]