DeClue Loop Trail Race

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From St. Louis Track Club

  • Date Sat 10th October 2026
  • Time 7:00AM CDT
  • Location Wildwood, Missouri
  • Price $70.89 - $102.91
  • Races 4 races
  • Distances Marathon, Ultra

Event summary

Get ready for an unforgettable day of outdoor adventure at the DeClue Loop Trail Race, hosted by the St. Louis Track Club on Saturday, October 10, 2026! Set in the picturesque Greensfelder Park in Wildwood, MO, this exciting event features four fantastic race distances: an 8-mile loop, a 16-mile race, a full marathon, and a challenging 50k. Whether you're a seasoned runner or a newcomer looking to test your limits, the DeClue Loop Trail Race offers something for everyone, with awards for the top three finishers in female, male, and non-binary categories.

Participants can enjoy a scenic experience on the 8.2-mile DeClue Trail, complete with rolling hills and technical trails, making it a true trail running experience. Remember to register early for the best rates and to secure your race swag! This cup-free event encourages runners to bring their own hydration, and there's plenty of parking available within the park. After the race, join us for refreshments and to celebrate the day’s accomplishments with fellow runners. Don’t miss out on this exciting opportunity to challenge yourself in the beautiful outdoors while making lasting memories!

Organiser's Description

***St. Louis Track Club members will automatically receive a $10 discount (use the same email address that you use for your member registration). Not a member? Click here to join [https://runsignup.com/MemberOrg/StLouisTrackClub]. ***

Come get loopy with us! The DeClue Loop Trail Race will be held Oct. 10, 2026 in scenic Greensfelder Park in Wildwood, MO.

The DeClue Trail is a 8.2-mile loop that begins and ends near the Visitor's Center in the heart of Greensfelder Park. Runners will run counter-clockwise starting and finishing near the trailhead. There are four distance options:

* 1 loop - 8 miles
* 2 loops - 16 miles
* 3 loops+ - Full Marathon
* 4 loops - 50k

Register early, price goes up on 8/12/2026.

Each distance option will have awards for the top 3 females, males and non-binary finishers.* Race Swag is included with registrations made through 9/25/26.

*Non-binary registrations must be completed before 10/3/26 to receive award on race day. Non-binary winners for late registrations past this date will be mailed an award.

RACE DAY INFO

CUP FREE: This is a cup-free event. It is strongly recommended that you carry hydration with you on course. There will not be any cups at the stations on the course.

PARKING: There should be plenty of parking within Greensfelder Park including near the Visitors Center, at Muckerman Shelter and at the gravel parking lot near the gravel road that heads to Round House.

Race registration and headquarters will be set up at the yellow gate at DeClue Trailhead. You will likely walk on the road to get from parking to registration, so please drive slowly when moving through the park, and pay attention to traffic as you walk near race headquarters.

PACKET PICK-UP: 50k and Marathon runners can begin picking up their packets at 6:15 a.m. at the trailhead, which is at the gravel parking lot near the gravel road that heads to Round House. 8-mile and 16-mile runners can begin picking up their packets at 7:15 a.m. at the trailhead.

*Extra shirts/swag may be available if you registered after the deadline, just ask!*

RACE START: The 50k distance and the Marathon will both begin at 7 a.m. The 8-mile and 16-mile races will begin at 8am. Race cut-off is 5pm. All runners must begin their last loop by 2:30pm.

* Cutoffs:
50K (18:45 pace) - 10 hours
Marathon (22:54 pace) - 10 hours
16 Mile (33:45 pace) - 9 hours
8 Mile (130 pace) - 9 hours

COURSE: 50k, 8-mile and 16-mile runners will start at the yellow gate and head down toward Round House making a left onto DeClue Trail. Marathon runners will also start at the yellow gate but will make a quick right to do a 2.4-mile loop on Dogwood Trail before heading onto DeClue. Once on DeClue runners will enjoy rolling hills and technical trails with a manned and stocked aid station at the 3-mile mark (with snacks and Tailwind) and a water station at about 6.2 mile mark just across Scenic Road. At the bottom of a nice hill runners will turn left on Eagle Valley trail, which will bring you up a nice climb to the top, behind the Visitors Center and across the street to the yellow gate start/finish area. Whether you are doing the loop once or 4 times, we hope you all take time to pause and enjoy all that Greensfelder Park offers.

The course will be well marked with orange flags and signs/arrows to guide runners. You can also check out the orange DeClue Loop on the Trail Map found here: https://stlouiscountymo.gov/st-louis-county-departments/parks/places/greensfelder-park/

TAILWIND will be served at the start/finish area and at the 3-mile aid station, and water and grab and go snacks will be available on course. Pre-packaged food will be served at aid stations and start/finish.

DROP BAGS: We will have an area for drop bags near the start/finish for runners to access in between loops.

POST RACE: Stick around after the race for beer/NA beer and snacks and to cheer on the rest of the runners!

THANK YOU TO OUR SPONSORS Tailwind and 4 Hands Brewing Company

Races

  • DeClue Loop Trail Race - 8 Mile

    Incl. $5.89 Fee & T-Shirt

    Sat 10th October 2026 (8:00AM CDT)

    $70.89

    CLOSED
  • DeClue Loop Trail Race - 16 Mile

    Incl. $6.56 Fee & T-Shirt

    Sat 10th October 2026 (8:00AM CDT)

    $81.56

    CLOSED
  • DeClue Loop Trail Race - Marathon 26.2

    Incl. $7.24 Fee & T-Shirt

    Sat 10th October 2026 (7:00AM CDT)

    $92.24

    CLOSED
  • DeClue Loop Trail Race - 50K

    Incl. $7.91 Fee & T-Shirt

    Sat 10th October 2026 (7:00AM CDT)

    $102.91

    CLOSED

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Location

Greensfelder County Park, 4515 Hencken Rd, Wildwood, 63069, MO, United States

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