Ultramarathon SDW100 2014 in UK

An ultramarathon is any organized footrace extending beyond the standard marathon running distance of 42 kilometers, 195 meters. Ultramarathons are run on roads, trails and tracks. 100 mile trail ran from Winchester to Eastbourne on the South Downs Way. Runners must follow the marked course at all times and minimum entry age is 21.

credit: Jon Lavis