Hell Hole Hundred

Event overview

The Hell Hole Hundred is an ultramarathon event held June 5-7, 2026 at the Jericho Horse Trail in the Francis Marion National Forest near Bethera, South Carolina. Distances offered include short and multi-loop ultra options. Primitive camping is available from the night before the event until the race ends; there are no utility hookups and porta potties will be onsite. Dogs are not allowed on the course per the event insurance policy.

Distances

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

Course and logistics

The trail uses two loop options: a 16-mile loop and an 18-mile loop. Surfaces include dirt fire roads and single-track trail. The 10k is an out-and-back with no aid on course. The event is held in hot, humid conditions in June; hydration and electrolyte management are emphasized. Drop bags are allowed at the start/finish and crews may meet runners at aid stations. Pacers are permitted for the 50-mile and 100-mile events starting at the halfway mark.

Aid, safety and support

There are three aid stations: one main start/finish station and two on-course stations. Stations provide standard ultra snacks, water, sports drink and additional cold treats for heat relief. Portable toilets are at the start/finish and both aid stations. Runners must check in at each aid station; unmanned stations use a clipboard check-in. Night-running requires a carried light and spare power.

Policies and awards

The event does not issue refunds. Race credit policy: 50% credit if withdrawn 21+ days before the event, 20% credit if withdrawn 14-20 days before, and no credit within two weeks. Credits are valid for one year. Bib transfers and same-day distance changes are allowed before crossing the start line. Finishers and top placings receive event swag, trophies, or finish items; 100-mile finishers receive a custom buckle. The race is part of a three-race Swamp Series where total miles determine series winners. Visit the organization's website for the most recent information.