The
Leadville Trail 100 is an
Ultra-marathon that is held in
August in
Leadville,
Colorado. About four hundred
runners run 100
miles at
elevations ranging from high 9000 to 12,600ft. The race takes up to
30 hours and usually at least
half of the entrants
drop out because of
dehydration,
hypothermia or
hypoxia.
Acute Mountain Sickness is also a problem.
This also referrs to a similar race held the week before, where mountain bike riders ride a similar course in under 12 hours.
ultra-runners are an insane breed who are usually reaching that mid-life crisis age.