Trail Running Calendar United States 2026-2027

A Woodland Park trail event featuring 50k and 10k options on singletrack and forest roads with views of Pikes Peak, stocked aid stations, and crew access for the 50k.

Trail races in Shawnee State Forest on October 3, 2026 offering 54 mile, 50K and 13.1 mile options across remote singletrack with significant elevation gain and marked aid stations. The 50 Mile route includes a wilderness section called The..

A timed endurance run in Cohoes, NY on October 3, 2026 offering 6 hour, 3 hour, 1 hour and relay options while supporting Flutters of Hope, a nonprofit for those affected by eating disorders.

El Diablo Hundo is a multi distance trail event at Lake Bistineau State Park in Doyline, LA. The main course is a 10 mile loop with two aid stations, on site camping, and finisher awards for longer distances.

Trail running and walk/hike options on the Deam Lake Loop in Borden, Indiana, with 5K and 10K courses, cupless aid stations using reusable cups, optional shirts, and wooden finisher medals.

Mountain trail races on Mount Bachelor over October 3–4, 2026, including 6/12/24-hour summit loops and three looped courses. Chairlift use is included and multiple aid stations and lodge facilities support runners on alpine singletrack.

Experience an off road trail race through the Coconino National Forest at high altitude. Choose from a marathon, half marathon, or 10k while supporting local college cross country programs in the Arizona Nordic Village.

Races in Waynesville, Missouri include a half marathon, 10k and 5k along the Roubidoux River with views of Frog Rock and fall colors. Completing the Friday 5k and a Saturday distance earns a third medal as the Frog Hill Challenge.

Point to point trail event in the West Elk Mountains offering a marathon and a 30K during peak fall colors. The event raises funds for the Nature Connection Summer Camp Scholarship Fund and includes a free shuttle to start areas.

Baker Lake 50k is a 50k running event on Saturday October 3, 2026 organized by NW Endurance Events. Registration closes October 2, the entry fee is $85 and a race shirt is available for $25.

Grand Valley Backyard Ultra is a last-person-standing trail event near Fruita, Colorado where runners complete repeated 4.167 mile loops with one hour to finish each loop until only one runner completes an extra lap.

Multiple race distances run near the Royal Gorge Bridge, including a 5K road run, an 8 mile trail race and a 13.1 mile half marathon, plus a free kids Dinosaur Dash and a virtual race option.

Experience the scenic single track trails of Steamboat Springs during the Emerald Mountain Trail Run. Choose between the 4 mile or 12k distances through aspen groves to support the local Boys and Girls Club.

Explore the scenic trails and steep hills of Mirror Lake State Park with several distances available. Finish your race with refreshments and s'mores around a campfire while supporting local park projects.

Experience night trail running on the rolling grassy hills of Lake Elmo Park Reserve. Choose between 5k and 10k races or a 6 hour endurance shuffle on lit ski trails.

Saddles 100 in Prescott, AZ on October 3, 2026 offers 100 mile and 50 mile loop options, plus a 10.72K and a new 6.66 mile fun run around Willow Lake. The 2026 main loop is run clockwise and the 50 mile course omits the dells section.

Trail races through Shawnee Mission Park offering 10, 20, 40, and 50 mile options that combine two trail systems. Courses mix runnable and technical terrain, use cupless aid stations, and include a 10 mile backup route if trails close.

A trail race in Franklin, NC offering 25K and 50K courses that ascend to Wayah Bald, with multiple aid stations, post-race music and food trucks, and a field capped at 150 entrants.

A last person standing Backyard Ultra at Findlay Reservoir where runners complete a 4.3 mile loop each hour. The self supported event features professional timing, live tracking and streaming, camping the night before, and non refundable en..

A 50 kilometer trail ultramarathon on October 3, 2026 in Kattskill Bay, NY, that traverses multiple Adirondack peaks around Lake George with about 9,000 feet of climbing and staffed aid stations with cutoffs.