Why do runners run? Why do they enter a half marathon, a marathon, and who in their right mind would enter an ULTRAmarathon? Why would anyone want to run 89.17km on a road? Surely there are easier ways to get from one city to the next – bicycle, bus, car? Yet every year thousands of athletes from around the world line the streets of South Africa to compete in the 89.17km Comrades marathon, known as “the ultimate human race”.