Ultramarathon

any footrace longer than the traditional marathon length of 42.195 kilometres

An ultramarathon is a running race that is longer than a 26.2 mile marathon race. The most common distances for ultramarathons are:

  • 50 Kilometers (31 miles)
  • 50 Miles (80.5 kilometers)
  • 100 Kilometers (62 miles)
  • 100 Miles (161 kilometers)

The most famous ultramarathon run in the United States is the Western States 100 Mile Race.