Trail Running calendar near High Ridge 2026-2027

Timed 3- and 6-hour loop races at Route 66 State Park near Eureka, MO on a measured 2.425-mile course with a 0.333-mile short loop. Cupless aid at the Forest Shelter; runners must bring hydration and lights.

A loop-based trail event in Foristell, Missouri on August 1, 2026, where runners repeat a 3.1 mile (5K) loop each hour and may stop after any completed loop. Results combine times for all completed loops to determine rankings.

A three-week night trail series in Wildwood, MO featuring three 10K races with increasing climb per mile. Organized by Terrain Trail Runners, the series includes finisher stickers, post-race refreshments, awards credits, and a cup-free sust..

Timed 6 hour and 3 hour endurance runs on a 1.01 mile loop at Watershed Nature Center in Edwardsville, IL, with a mixed crushed limestone and pavement surface. Field limited to 120; proceeds support the nature center.

A three leg relay for teams of two on the Ozark Trail in the Mark Twain National Forest. Run, mountain bike and paddle over 55M or 33M options with on course aid and paddles provided.

A loop based trail event at Cliff Cave Park on August 22, 2026, featuring a marked 3.1 mile loop along the River Bluff Trail with packed dirt, singletrack, and bluff views. Runners may repeat laps to reach distances from 5K to 50K.

A continuous 3.1-mile loop trail race at Cliff Cave Park with rolling hills, river overlooks, and a fully stocked aid station each lap. Options are 40 or 50 miles with a 12-hour cutoff and designated crew and pacer access.

Trail races at the Lewis and Clark Trailhead near St Charles include a 13.1 miles half plus separate 8 miles and 5 miles loops. Aid stations offer water and Tailwind and each runner receives a reusable cup at packet pickup.

Trail runs and a ruck event at Queeny Park on September 5, 2026. Events include chip timing, lap aid stations, finisher medals, age group awards, event shirts and backpacks.

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.

Trail trail races in Greensfelder County Park, Wildwood MO on September 26 2026. Distances include a 53K and a 13.1 mile half marathon with a ruck division on technical, hilly single track with manned aid stations and a cup free policy.

Run the scenic Katy Trail with 5k 10k or half marathon options followed by a celebration at The Wine Cafe featuring whiskey sampling coffee and local donuts in St. Charles.

A women only weekend at Cuivre River State Park with camping, hiking, night trail runs and outdoor clinics organized by Terrain Trail Runners. The free event is capped at 20 participants and hosting costs are shared among attendees.

A rugged half marathon hike and run on the Ozark Trail near Middle Brook, Missouri. The route covers about thirteen miles of rocky, technical terrain with notable elevation change and limited on‑course support.

A backyard ultra in Rolla, Missouri using a 4.167 mile loop that must be completed each hour until one runner completes one more lap than the rest. Daytime laps are on dirt trails and nighttime laps are on paved trail, with awards including..

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 repeating loop backyard ultra at the New Town amphitheater in Saint Charles, Missouri, with a 4.17 mile runner loop and a 2.6 mile ruck division that includes weight minimums. Race proceeds support MSMDS research.

Timed 6 hour and 12 hour endurance runs at Minnie Ha Ha Park on a USATF certified 1.17 mile paved loop through wooded park along the Meramec River. The event is cupless with an aid station and chip timing; finishers receive medals.

An annual open 5K at Jefferson Barracks Park in Saint Louis held alongside the Hancock Cross Country Invitational. The race welcomes all ages; registration opens August 1, 2026, with a $15 fee and closes on race day.