
Falls & Forest 12‑Hour Challenge
Date
Sat, Aug 22, 2026, 8:00 AM EDTRace options
3 distancesTap any distance below for fee tiers and close dates.
Race options
Distances & registration
3 optionsTap a distance to see fee tiers and close dates.
25K
closes Mar 28, 2026, 7:59 PM EDT
Registration closedDuo 12 Hour
Closes Mar 28, 2026, 7:59 PM EDT · From $64.60
50K
closes Mar 27, 2026, 7:59 PM EDT
Registration closedSolo 12 Hour
Closes Mar 27, 2026, 7:59 PM EDT · From $64.60
100K
closes Mar 27, 2026, 7:59 PM EDT
Registration closedQuad 12 Hour
Closes Mar 27, 2026, 7:59 PM EDT · From $64.60
Ready to register?
Finish signup on the organizer site (check fees and dates there).
From the organizer
“Where the miles meet the wild. ” The Falls & Forest 12‑Hour Challenge invites runners to push their limits in one of Kentucky’s most scenic and rugged natural playgrounds: Saunder Springs Nature Preserve. This endurance test winds through shaded forest trails, rocky climbs, creekside paths, and the iconic waterfalls…
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that make this preserve unforgettable. You can run solo, as a 2-person team, or 4-person team. Runners will have 12 full hours to rack up as many miles as they can on a beautiful, challenging loop course that blends technical footing with fast, runnable sections. Expect August heat, dense summer greenery, and the kind of grit that only a Kentucky trail can demand. Whether you’re chasing a mileage PR, testing your ultra legs, or just looking for a full‑day adventure in the woods, this event delivers a uniquely immersive experience. Aid, support, and encouragement will be waiting each loop — but the real challenge is between you and the trail. Falls. Forest. Twelve hours. One incredible day on the trails.