Wildwood Trail Marathon returns to Wildwood, Missouri on December 5th, bringing together runners from across the region for a challenging yet rewarding course through scenic trails in West County, St. Louis. The race begins early on a crisp winter morning at Highway 109 in Wildwood, where participants gather before sunrise for the start of their journey. The atmosphere is one of quiet determination as racers prepare to tackle miles of winding paths and varied terrain that characterize this beloved event. Now entering its tenth year, the Wildwood Trail Marathon has become a cornerstone tradition for runners looking to cap off their racing season on a high note. Each edition sees increasing participation from both novice trail enthusiasts and seasoned marathon veterans alike. The race not only celebrates running but also supports underrepresented communities through partnerships with initiatives like the Trail Mix Fund, which covers registration fees for those who might otherwise be unable to participate. The course itself winds through miles of well-maintained trails in West County's lush green spaces, offering runners a mix of challenging hills and flat stretches that showcase both the beauty and diversity of Missouri’s natural landscape. Start and finish lines are conveniently located at Highway 109 with aid stations placed strategically along the route to provide necessary hydration and nutrition without disrupting the race flow. Race day weather in Wildwood typically presents firm yet slightly soft trail conditions, ideal for maintaining speed while navigating varied terrain. With a UV index around low levels, participants can expect mild temperatures that are neither too cold nor overly warm, making it an excellent environment for endurance running. Humidity is generally moderate but not oppressive, and there's usually little risk of precipitation.
Registration is handled on-site with cash only payments due at Highway 109 in Wildwood starting from 6AM until 8:30 AM on the day of the race. Fees are $120 for the marathon, $90 for the half-marathon and $50 for the 10K distance. Bib pickup is not required as participants register at the start line. Participants should arrive early to complete their registration process smoothly. The event takes place along Highway 109 in Wildwood, Missouri where all distances begin and conclude on December 5th, wrapping up another successful year of trail running in St. Louis County. Wildwood Trail Marathon concludes its tenth edition as a significant community-driven event that brings runners together to celebrate the joy of long-distance racing through scenic trails while also fostering inclusivity within the sport.
Races Offered
1/2 Marathon
Dec 05, 2026
straighten
Distance —
21.1K
terrain
Type —
Running
timer
07:00
sell
$90.00
Marathon
Dec 05, 2026
straighten
Distance —
42.2K
terrain
Type —
Running
timer
07:00
sell
$120.00
10K
Dec 05, 2026
straighten
Distance —
10K
terrain
Type —
Running
timer
09:00
sell
$50.00
Weather History
These values represent the 3-year monthly averages for December in Wildwood.
thermostatTemperature
-0.1° / 8.9°
wb_sunnyFeels like
-4.5° / 5.0°
light_mode
Avg sunshine hours
5h 47m
water_drop
Avg rainfall
1.6 mm
ac_unit
Avg snowfall
0.1 cm
air
Avg wind speed
12.4 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
72.9%
wb_twilight
Sunrise
08:12
nightlight
Sunset
17:43
About Wildwood
Learn more about the host city, Wildwood.
Wildwood is a city in St. Louis County, Missouri, United States. It is located in the far western portion of the county. It was incorporated on September 1st, 1995. As of the 2020 census, the population was 35,417. Wildwood is the home of the Al Foster Trail, and numerous other trails, parks, and reserves such as Rockwoods Reservation and Babler State Park.