The Comrades Marathon is an ultramarathon of approximately 89 km (approx. 56 miles) which is run annually in the KwaZulu-Natal Province of South Africa between the cities of Durban and Pietermaritzburg. It is the world's largest and oldest ultramarathon race. The direction of the race alternates each year between the "UP RUN" starting from Durban and the "DOWN RUN" starting from Pietermaritzburg.
Entries open on 1 September and close on 30 November annually, or once the quota of 20 000 has been reached. Runners over the age of 20 qualify when they are able to complete an officially recognised marathon (42.2 km) in under five hours. During the event an athlete must also reach five cut-off points in specified times to complete the race. The spirit of the Comrades Marathon is said to be embodied by attributes of camaraderie, selflessness, dedication, perseverance, and Ubuntu.