DateExpected
Early December 2026
Based on past editions. We'll confirm when the organiser announces.
Venue
LaSalle Springs Middle School, 3300 Highway 109, Wildwood, MO 63038
Wildwood, Saint Louis County
Countdown
December
The half marathon is the middle option: a point-to-point-free single loop with gentle climbing (about 230 m) and six hours to finish. Plenty of time for a first trail half.
Key facts
016-hour hard cutoff
02Hard return cutoff at Sherman Beach aid station before 14:00
Create a free training plan for the Wildwood Trail Marathon 21 km
7-day free trial, no card required
The course
The route
Wildwood
Distance21km
Total climb228m
StartElevation
0 kmDrag map to rotate20.6 km
Weather
Early-December, Wildwood
8°CTypical high
-3°CTypical low
-23°CColdest in 20 years
22%Days with rain
Highs around 8°C and lows around -3°C, but it has dropped to -23°C. Rain on 22% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Emily Reitz02:04:4410.3 km/h
02Abbey Sundermeyer02:08:2410.0 km/h
03Kendall Johnson02:10:419.8 km/h
12
Women finishers
3:01:38
Median time
7.1 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserTerrain Trail Runners
Websiteterraintrailrunners.com
Instagram@terraintrailrunners_stl
Running since2017
Training
Training for the Wildwood Trail Marathon 21 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Wildwood Trail Marathon 21 km plan targets
Typical sessions
21 km with 228 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Wildwood Trail Marathon 21 km plan.
7-day free trial, no card required.
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