Trail Running Calendar United States 2026-2027

The Summit 200 is a 200 mile loop around Summit County Colorado that climbs into high alpine single track above 12,700 feet. Capped at 100 runners and requiring a prior 100 mile finish, it is a remote, high altitude test of endurance.

Run the Ragged 75 multi day stage race or choose the single day 50k on rugged trails around Lake Sunapee, NH. Big climbs, scenic single track, communal camping and a true self supported trail challenge.

Run the scenic Lean Horse Ultra through the Black Hills from Custer on the gentle rails to trails George S. Mickelson Trail. Distances span 20 miles to a sanctioned 100 mile race with relay and team options on limestone.

Join the Wild West Relay, a scenic point to point run of roughly 200 miles from Fort Collins to Steamboat Springs. Solo runners and teams of all sizes are welcome for an unforgettable overnight relay adventure.

Join the SoCal Summer evening 6K or 12K at Lower Arroyo Park in Pasadena on July 31 2026 and celebrate after with tacos and drinks. Scenic park routes and friendly vibes make this a perfect summer night run.

Take on the Sheep Mountain Trail Runs in Fairplay Colorado on August 1 2026 with 50 mile, 50k and half marathon options across high alpine trails. Expect rugged terrain, big mountain views, well stocked aid stations and a finisher award.

Hood Hundred is a challenging 100 mile mountain trail race on Mt Hood with roughly 17,300 ft of ascent and descent across a scenic lollipop loop. It is a Western States qualifier with a 34 hour cutoff and rewards finishers with a custom met..

Run the rugged Loowit Trail around Mt. St. Helens with volcanic vistas, lava fields and dense forest. Choose a 25K or the full 50K circumnavigation for a true backcountry challenge with limited entries and rustic car camping.

Take on the Kennebec Mountain Run, a 15 mile trail with about 3,100 feet of climbing to a high alpine pass. Limited to 150 runners, the grassroots race raises funds for La Plata County Search and Rescue and showcases Colorado scenery.

Run or hike scenic singletrack to coastal summit views at Blue Hill Mountain Trail Fest near Blue Hill, Maine, with distances from 5k to 50k. Proceeds benefit Blue Hill Heritage Trust and the Wabanaki Alliance.

Tackle tree covered single track and creek crossings at Oakadoke Trail Runs in Valparaiso on August 1, 2026, with 18 mile, 9 mile, and 4 mile options for all abilities. Custom finisher awards and youth pricing make this a fun family friendl..

Take on the Aspen Backcountry on August 1 in Rio Grande Park with three distances from a 50K to a hearty half marathon over rugged alpine trails and big elevation gain. Celebrate at the finish festival with live music, food trucks and famil..

Blazin' Summer Sufferfest lights up Cedar Hill State Park at night with looped trail races from 5K to 54K across forest and grassland. Trails are unlit so carry hydration and a reusable cup for a rugged, adventurous night run.

High alpine trail running at Eagle Point Resort near Beaver, Utah, with distances from half marathon to 100K. Technical singletrack, big climbs above 10,500 feet, staffed aid and onsite camping for a true mountain challenge.

Challenge yourself at Steel City Human vs Horse at Hillman State Park, where runners and riders start together on scenic single track, gravel and meadow trails. Choose from 20k, 50k or 50 mile courses for a one of a kind race day experience..

Run a 5K, 10K or Half Marathon around scenic Green Valley Lake, tackling a lake loop and a challenging climb to forest viewpoints on mixed paved and dirt roads. Enjoy post race festivities while supporting The Children’s Forest.

Taos Ski Valley hosts the Up & Over Trail Run weekend Aug 1 and 2 featuring a high alpine 10k, a steep Vertical 1k, a two day challenge and a kids 1k. Big climbs, sweeping peak views and a technical descent make this a must do.

Run the Vineyards at Bohemia Manor Farm offers scenic 5K and 8K courses through vineyards, waterfront and wooded trails, chip timed with live results. Finish with refreshments, a souvenir wine glass and an after party on the river.

Experience the Yellowstone Trail Race in West Yellowstone, Montana on August 1, 2026, from Rendezvous Ski Trails. Choose marathon, half marathon, or 10K on scenic, challenging trail terrain.

Run through rugged Wyoming Wilderness at El Vaquero Loco on Aug 1, 2026, choosing a challenging 50k or 31k course. This community race supports Star Valley High School track and cross country while showcasing scenic, off road trails.