Ozark Foothills Endurance Runs

Wildwood, United States • 9-11 Apr 2027

Ozark Foothills Endurance Runs - April 9-11, 2027

Ozark Foothills Endurance Runs is a multi-distance trail running event in Wildwood, Missouri, held at 4515 Hencken Road and organized by Terrain Trail Runners. The event program includes a range of distances from a kids fun run up to a 100 mile race. Registration opens May 22, 2026, and is scheduled to close March 30, 2027, or when field limits are reached. Online registrations made after March 14, 2027, will receive alternative event swag instead of guaranteed swag.

Entry fees are listed in tiers, with a published range from USD 100.25 to USD 349.32. The event lists two price increase dates for several distances: a first tier increase after September 27, 2026, and a final tier increase after February 28, 2027. The Night-50K distance is exempt from price increases. Deadlines for distance changes, registration cancellation, and pacer registration fall on March 28, 2027.

The event participates in the Trail Mix Fund program, which pays race registration fees for eligible participants to reduce financial barriers and support greater diversity in trail racing; this partnership began in December 2025. The organizer publishes race policies covering refunds and other rules. As part of a sustainability pledge, the races are cup-free and participants are asked to bring their own mess kit to reduce single-use waste.

Distances include: Visit the organization's website for the most recent information.

  • 100 mile race
  • 100 km race
  • 50 mile race
  • 50 km race
  • Night 50 km race
  • Marathon (approximately 26.2 miles)
  • 25 km race
  • 25 km ruck event
  • 1 mile Kids Fun Run

Race information

100 mi
100 Miler
100 km
100k
50 mi
50 Miler
50 km
Night-50k
50 km
50k
26 mi
Marathon
25 km
25k Ruck
25 km
25k
Visit the organization's website for the most recent information.
Trail runs nearby

Three 10K night trail races in Wildwood MO with increasing climb per mile across a three week series, organized by Terrain Trail Runners.

A loop based trail event at Cliff Cave Park on August 22, 2026, featuring a marked 3.1 mile loop along the River Bluff Trail with packed dirt, singletrack, and bluff views. Runners may repeat laps to reach distances from 5K to 50K.

A continuous 3.1-mile loop trail race at Cliff Cave Park with rolling hills, river overlooks, and a fully stocked aid station each lap. Options are 40 or 50 miles with a 12-hour cutoff and designated crew and pacer access.

Trail races at the Lewis and Clark Trailhead near St Charles include a 13.1 miles half plus separate 8 miles and 5 miles loops. Aid stations offer water and Tailwind and each runner receives a reusable cup at packet pickup.

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