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 100K point to point trail race in Port Mayaka, Florida, from the NENA trailhead to Hobe Sound beach. The mostly single track route crosses varied coastal ecosystems, requires a crew, and has an 18 hour time limit.

A Backyard Ultra at Willenborg Woods on May 30, 2026, using repeated 4.167 mile loops each hour. The last runner remaining wins a Bronze Ticket toward Big Dog's Backyard Ultra World Championship.

A trail race day at Smith Rock State Park near Madras, Oregon on May 30, 2026 featuring 50 mile, 50K, and 10 mile course options with basalt cliff scenery and views of the Cascade peaks.

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.

A long trail ultramarathon at Robert H. Treman State Park offering **50K** and **50M** routes through singletrack, waterfalls, and stone stairs, with aid stations, drop bag support, a ~400 runner cap, and a no-refund rollover policy.

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 in Monroe, NC uses a 4.167 mile loop on private farmland; entrants can run repeated hourly loops until one runner remains or choose a single 4.167 mile Celebrity Loop.

A backyard style ultra in Knoxville MD on May 30, 2026 where runners complete a 4.167 mile loop each hour until one remains. A 1 mile event runs for 24 hours with additional tie breaker miles if needed.

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 across the foothills offering 10K, Half Marathon, 50K and 50 Mile courses with significant elevation gain, GPX routes, aid stations, medals for finishers, and pre-race bib pickup.

Echo Valley is a two day trail running event in Lake Chelan offering a 1-mile kids race, 10K, half marathon and 50K on single loop forest trails with valley views. Camping, aid stations, and cupless racing rules apply.

A trail ultramarathon in Buffalo Creek, Colorado offering 50 mile and 50K courses on mostly singletrack through burned areas and ponderosa forest. Portions of proceeds support the North Fork Volunteer Fire Department and local groups.