On August 9th, Keri-Anne Payne and 24 other Olympians will race 6 loops around the Serpentine. The next day, Thomas Lurz, Spyros Gianniotis and Ous Mellouli will race each other and 22 other men to stand on the Olympic podium. These two 10 km races will be broadcast to a global television audience. In many countries, the races will be simultaneously