Hell Hole Hundred

JUN
5-7
2026
A multi distance trail event on the Jericho Horse Trail in Francis Marion National Forest offering looped 16 mile and 18 mile courses and distances from 10k to 100 miles. Expect hot, humid swamp conditions, three aid stations, and primitive camping.
5-7 Jun 2026
100 miles 50 miles 50 kilometers 25 kilometers 10 kilometers

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Hell Hole Hundred

The Hell Hole Hundred is a multi distance trail event held on the Jericho Horse Trail within the Francis Marion National Forest near Bethera, South Carolina. Distances offered include a 10k up to a 100 mile event.

  • 100 miles
  • 50 miles
  • 50k
  • Night 25k
  • 25k
  • 10k

The course uses two loop options of 16 mile and 18 mile loops, plus an out and back for the 10k. Trail surfaces include dirt fire roads and single track. The route is described as flat but run in hot and humid swamp conditions in June. The 10k has no aid stations on course so runners should carry needed fluids; many DNFs at this event are attributed to improper hydration and electrolyte management.

There are three fully stocked aid stations and a main aid area at the start and finish offering food and meals for runners and volunteers. Porta potties are provided at the start finish and at both aid stations. Runners are required to check in at each aid station. Pacers are allowed for the 50 and 100 mile distances at the halfway mark and one pacer bib is issued per runner.

Primitive camping is available from the night before until the event ends and has no water or electric hookups. Dogs are not allowed on course per the event insurance policy.

The event is part of a Swamp Series spanning three races. Awards include a custom buckle for 100 mile finishers, trophies for top three male and female finishers in each distance, and wooden medals for all finishers. No refunds are offered but bib transfers and a one year pregnancy or postpartum deferral are available. Visit the organization's website for the most recent information.

100 mi
100m
50 mi
50 Miler
50 km
50k
25 km
25k
25 km
Night 25k
10 km
10k
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