Trail Running Calendar United States 2026-2027

Muddy Dash Detroit is a 5K mud run with obstacles, mud pits, a pre-party and an after-party with music, food, and beer at the Everett A. Cummings Center on September 12, 2026; the event welcomes all ages.

An adventure race at East Fork State Park where solo competitors or teams trek, bike, and paddle to collect checkpoints using map and compass. Timed 6 hour and 12 hour formats are USARA sanctioned and include boat rental options.

A chip-timed one-mile uphill trail race to the top of Pincushion Mountain in Friant, CA, with awards and finisher items. A Mountain Goat edition allows multiple timed ascents within a four-hour window and includes special awards.

Trail ultramarathon at Hickory Run State Park near Jim Thorpe, PA. Options include 100 km, 50 km and 18 miles on a 50 km loop with a boulder field and a rugged one mile Shades of Death Trail.

A Stadion 5 km obstacle race with 20 obstacles at Angel Stadium of Anaheim, plus a kids race and spectator tickets. The event has a 4.8 rating from 40 testimonials and offers team entry options and a service member discount.

An obstacle mud run at the Jerry Long Family YMCA with a 3.1-mile 5K for ages 7+ and a 1-mile Fun Run for all ages, supporting YMCA health programs and offering new medals for 2026.

Trail races at Cane Creek Mountain Natural Area feature a 10K and half marathon over single-track trails, steep climbs, and an optional climb of an 80 foot observation tower with frequent aid stations and chip timing.

Devil on the Divide in Empire, Colorado is a point to point trail event on September 12, 2026 offering 50K and 22K options with high alpine terrain and substantial elevation gain; prior ultra experience is required for the 50K.

A backyard ultra in Richland, WA where runners repeat a 4.16667 mile loop each hour until one person completes a final solo lap. Single aid station, overnight support and custom belt buckles awarded at 100 miles.

The Pine Creek Challenge is a trail run on the scenic Pine Creek Rail Trail in Pennsylvania's Pine Creek Gorge. Runners can choose from 100-mile, 100k, 50-mile, and marathon distances on an out-and-back course. The event starts and finishes..

A 12 hour night trail event at Kings Mountain State Park with a 4.5 mile loop through marked trails, lakeshore views, and a central aid station offering hydration each circuit.

Trail races at Tilden Regional Park in Berkeley offering 50K, 35K, half marathon and 10K with scenic bay views, aid stations every 5–7 miles, cupless stations, and awards for finishers and age groups.

Trail Sisters Women's Half Marathon and 10K in Buena Vista, Colorado, feature trail courses through sagebrush and ponderosa pines with views of the Collegiate Peaks, and offer both group and solo participation options.

Oak Flats Picnic Trails in Tijeras, NM is a free, self supported looped trail event with distances from 5k to 30k on unmarked routes and a picnic table aid station. Dogs are welcome and registration on UltraSignUp is required.

Prairie On Fire Backyard Ultra in Noblesville is a repeating 4.167 mile loop event at White River Campground where runners complete each loop within an hour and continue until a single finisher remains.

A trail event in Sparta, Tennessee featuring a new 50 Miler plus 25K run and 25K ruck, routing through limestone gorges, waterfalls, and remote backcountry with Camp Latimer as the start and finish hub.

Trail ultramarathon near Cortland, NY on September 12, 2026 offering 100 mile, 100 mile relay, 50 mile and 50K options. The course features steep climbs, technical singletrack and major elevation gain; pacers are allowed for the 100 mile.

Trail races in Hocking Hills State Park on September 12 2026 feature five distances from 5K to 50K, mostly on trail through Old Man's Cave, Cedar Falls and Ash Cave, with GPX files and mapped distances provided.

A family-oriented mud run in Redding on September 12, 2026 featuring a course just under 5 km with obstacles, creek crossings, vendors, food, and children's activities. The event supports the Active 20-30 Club of Redding.

Coal Miner in Roslyn, WA is a self supported trail ultramarathon with a 51.3 mile course and over 10,000 feet of climb. Entrants must navigate from GPX files, carry a satellite messenger, and validate completion with GPS data and summit sel..