Trail Running Calendar United States 2026-2027

A team trail relay at Dillon State Park on May 29 to 30, 2026, covering 122 miles in total with about 15.8 miles per runner across shaded forest and single-track trails beside a reservoir and white sand beach.

STADIUMTREK West Ottawa on May 29, 2026 challenges participants to complete 14,000 steps within a three hour window to earn 14ER status. Individual and relay entries are offered with team rules and a registration fee.

An obstacle race weekend at Toro Park near Salinas on May 30-31, 2026, featuring a 5 km Sprint with 20 obstacles, a 10 km Super with 25 obstacles, kids races and trail events across wooded, hilly coastal terrain.

At Fort Carson near Pike's Peak on May 30 to 31, 2026, Spartan offers multiple obstacle races at high elevation. Events range from a kids 1 to 3 km race to a 50 km Ultra and include a pre event workshop and spectator access.

A point to point 100K trail race on May 30, 2026 from the NENA trailhead in Port Mayaka to Hobe Sound beach, running through varied Florida ecosystems. The race has an 18 hour limit and requires a support crew.

A Backyard Ultra at Willenborg Woods in Charleston, IL on May 30, 2026 where runners repeat a 4.167 mile trail loop each hour until one finisher earns a Bronze Ticket toward the Big Dog's Backyard Ultra World Championship.

Trail races of 10 mile, 50K, and 50 mile around Smith Rock State Park and the Crooked River Grasslands with significant elevation change, single track sections, and multiple aid stations.

Experience the rugged beauty of the Endless Mountains in Pennsylvania with this technical trail event. Runners navigate waterfalls and vistas across two demanding distances with comprehensive aid station support and post race meals.

Experience an all terrain trail race through the historic grounds of Luckenbach Texas featuring stream crossings and live country music. Choose between a timed competitive heat or a social beer mile and fun run for teams and individuals.

Cayuga Trails in Ithaca, NY is a primarily singletrack race featuring waterfalls, stone stairs, and two distances, a 50 mile and a 50K. The race has a 440 runner cap, drop bag service, post-race gear, and charity support.

Experience one of the nation’s oldest ultra-marathons through the 5,000-acre Mohican Memorial State Forest. This event offers 100-mile, 50-mile, and marathon distances and serves as a qualifier for the Western States 100.

Fixed-time running events of 6 hour, 12 hour and 24 hour take place on a USATF certified 500 meter gravel loop at Nardini Manor in Buckeye, AZ, with on-course aid, live chip timing, cupless stations, and designated crew areas.

Momentus Back Yard Ultra runs repeated 4.167 mile loops on private farmland near Monroe NC, with a last-runner-standing Ultra and a single-loop Celebrity option. The event is self-supported, features on-course music and limited on-site park..

A backyard ultra in Knoxville, Maryland where runners complete a 4.167 mile yard each hour until only one finishes. The event includes a 1-mile option, offers prize money for top finishers, and serves as a Backyard Ultra qualifier.

A trail running event at Point Pinole on May 30, 2026, offering a half marathon, 10K and 5K. The original Brazen Racing event welcomes runners and walkers and includes bib pickup, posted results, free photos and volunteer roles.

A multi distance running festival in Eaton, Colorado on May 30 to May 31, 2026 offering races from 7K to 100 Mile plus relay and timed events. The venue uses a 2 mile groomed loop and provides glamping and onsite amenities including sauna a..

A 5K trail event on May 30, 2026 at Danvers YMCA Camp in Boxford with separate courses for runners and for walkers and waggers, pond and vernal pool scenery, prizes, post-race treats, and registration benefits.

Trail races in Salt Lake City offering 50 miles, 50K, half marathon, and 10K courses through the foothills with substantial elevation gain; bib pick up the day before and prize money for the 50K and half marathon.

Echo Valley in Chelan, WA is a two day trail running weekend on May 30 and 31 2026 with a 1 mile kids race, 10K, half marathon and a Saturday 50K on single loop trails with valley views and pine forest.

A mountain ultramarathon near Denver offering 50 Mile and 50K options on mostly singletrack trails, passing 1996 burn areas, ponderosa pines, and granite formations. Part of the proceeds support the North Fork Volunteer Fire Department.