Declue Loops Trail Race

OCT
10
2026
Loop-based trail race in Greensfelder Park offering 8, 16, marathon and 50K options with stocked aid stations and a cup-free course.
Sat 10 Oct 2026
8 Mile 16 Mile Marathon 26.2 50k

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DeClue Loop Trail Race

The DeClue Loop Trail Race takes place Oct. 10, 2026 in Greensfelder Park, Wildwood, MO. The DeClue Trail is an 8.2-mile loop that begins and ends near the Visitor's Center and is run counter-clockwise from the trailhead. Course wayfinding will use orange flags and signs.

Distance options:

  • 8 Miles - one loop
  • 16 Miles - two loops
  • 26.2 Miles - three loops plus
  • 32 Miles - four loops

The course features rolling hills and technical singletrack. A manned, stocked aid station is located at the 3-mile mark with snacks and Tailwind, and a water station sits around the 6.2-mile mark just across Scenic Road. Tailwind will also be available at the start/finish area. Aid stations provide pre-packaged food and grab-and-go snacks. Drop bags may be accessed near the start/finish between loops.

This is a cup-free event; runners are strongly encouraged to carry personal hydration because there will be no cups on course. Parking is available at several park lots including near the Visitor's Center, Muckerman Shelter, and the gravel lot near the gravel road to Round House. Registration includes race swag for entries made through 9/25/26. Awards are given to the top three finishers in female, male, and non-binary categories; non-binary registrations must be completed by 10/3/26 to receive awards on race day. Visit the organization's website for the most recent information.

50 km
50k
26 mi
Marathon 26.2
16 mi
16 Mile
8 mi
8 Mile

Events nearby

Free, beginner-friendly guided trail running and hiking program in the St. Louis area with weekly Sunday excursions from October 11 to December 20, 2026.
A 15 kilometer trail event at Dr. Edmund A. Babler Memorial State Park on October 24, 2026, offering both a foot race and a ruck division. Ruck participants must carry at least 20 lbs and receive a custom rucking patch.
Chip-timed 5-mile event in Marthasville on a 1-mile loop with on-course aid, recovery sessions including cold plunge and yoga, camping and related weekend bike activities.
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