Trail Running calendar near St. Louis 2026-2027

Trail races at Lewis and Clark Trailhead near the Missouri River offering 5-mile, 8-mile, and half marathon courses using the Clark and Lewis loops. Cup-free event with aid stations, a reusable SpeedCup at pickup, parking at the Weldon Spri..

An open 5K running event in Forest Park, Saint Louis, on 12 September 2026 with a $15 entry fee; the festival also features high school cross country competition and open registration from 23 April 2026.

A 5K trail run or walk at Patriot's Park in Greenville on 09/26/2026 focused on community support for children and families affected by childhood cancer, with registration open 03/02/2026 and a $35 fee.

A trail race at Greensfelder County Park on September 26, 2026 offering a 53K ultra, a half marathon and a half marathon ruck option. Courses run mostly on singletrack with rocky, technical terrain and substantial elevation gain.

A 5K, 10K and Half Marathon along the Katy Trail near St Charles, Missouri on September 27, 2026. The Wine Cafe hosts post race whiskey sampling and an after party while awards are posted as instant results at the finish line.

An off-road half marathon on rugged Ozark Trail terrain with steep elevation, technical rock sections, and a river crossing. The event benefits the Ozark Trail Association, uses mandatory shuttles, and awards commemorative patches to finish..

Experience technical trails and rolling hills at Greensfelder Park with distance options ranging from 8 miles to a 50K ultra. This cup free event features a repeating loop format through scenic Missouri woodlands.

A last-person-standing backyard ultra on a 4.17 mile loop in New Town, Saint Charles, on October 10 to 11, 2026. Runners pay a $25 entry and add one dollar per lap to a jar that is split between the winner and MSMDS research.

Timed 12, 6, and 3 hour endurance runs on a USATF-certified 1.17-mile paved loop at Minnie Ha Ha Park near Fenton, Missouri. The cupless, chip-timed event includes aid station support, finishers medals, and series points.

A 15K trail event at Dr. Edmund A. Babler Memorial State Park offering a standard trail race and a 15K ruck division that requires a minimum 20 lb pack. The loop course has one unmanned water drop and is a cup free event.

An 18th edition, point to point trail 100 miles through the Ozark Trail in Mark Twain National Forest near Steelville, Missouri. The course includes single track, stream crossings, about 12,000 feet of climb and 13 aid stations.

Timed trail event on 11/28/2026 at Turkey Ridge in Wildwood with a 1.8 mile loop and 347 ft elevation gain per loop. Two time categories let runners complete as many loops as possible in 2 or 4 hours.

Celebrate Thanksgiving in St. Louis with this annual running event featuring multiple distances from a half marathon to a kids dash. Enjoy chip timing designer shirts and custom medals for all participants.

Honor history through a winter endurance trek in the St. Francois Mountains. Choose between a 40 mile expedition, a 17 mile overnight challenge, or an accessible 4 mile hike through Johnson Shut Ins State Park.

Trail races in Wildwood, Missouri offering marathon, half marathon and 10K on mixed surfaces with single track and technical sections. The event is cup-free and features manned aid stations, finisher medals, and post-race food for longer di..

Trail ultramarathon weekend at Beaumont Scout Reservation near High Ridge, Missouri, offering multiple distances from 25K to 100 miles on predominantly single track with steep climbs and two indoor aid stations.

A backyard ultra at Queeny Park using a 4.19 mile mixed surface loop in a last person standing format. Awards are given by gender and challenge coins are awarded for loop thresholds.

Trail running event in Wildwood, Missouri taking place April 9 to 11, 2027, with distances from a free kids fun run up to 100M. The event follows a cup-free, zero waste policy and partners with the Trail Mix Fund.