Trail Running Calendar United States 2026-2027

A community fundraising 5K on Legacy Park's cross country trails with professional timing, post-run food and local beer and wine tasting for registrants 21 and over.

A three day 75 mile stage race around Lake Sunapee and a 50K on the SRKG Greenway featuring technical trails, significant elevation gain, and organized overnight camping.

Ultrarunning event on the George S. Mickelson Trail in Custer South Dakota, July 31 to August 1 2026, with multiple distances on crushed limestone.

An overnight team relay covering 200 miles and 36 legs from Fort Collins to Steamboat Springs, crossing two mountain passes. Multiple team categories are offered and teams choose between supplying volunteers or donating to Windsor Gives.

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

Two days of trail racing at Bogus Basin with a Friday hill climb plus 5 mile and 10 mile races on Saturday, supporting Ridge to Rivers and youth trail programs.

An inaugural 4 mile event on July 31, 2026 at Iron Horse Trail in Alliance, Ohio, with in-person and virtual 4 mile options. Registration runs March 28 to July 24 with a $35 fee and includes a bib, shirt, and medal.

Evening trail races at Wyandotte County Lake Park with 5 km and 10 km courses, notable elevation gain, awards and a post race summer party.

A 3 person cross country relay on July 31, 2026 at the Osage XC course in Cape Girardeau. Teams run three 1 mile legs and use a bring your own baton format for creative handoffs.

A muddy obstacle event at CERAland Park on August 1, 2026 featuring 15K and 5K courses, finisher awards, Mudder Village, and partner Hurricane Heat races.

At Tryon International Equestrian Center, the Asheville Spartan Event Weekend stages trail obstacle races across red clay hills, creek beds, and horse trails. Races include Sprint, Super, a kids race, plus an obstacle workshop and spectator..

A 100K loop ultramarathon near Oakridge, Oregon, over high elevation single track trails with climbs over several peaks and views of Waldo Lake.

Sheep Mountain Trail Runs in Fairplay, CO offers 50 mile, 50k and half marathon courses at high elevation with technical trails and forest roads. The event includes stocked aid stations, a finisher medal, drop down options and a 16 hour tim..

A 100 mile mountain trail race on Mt. Hood with a crew accessible lollipop loop, 17,300 feet of ascent and descent, staged at Mt. Hood Meadows.

Loopy Looper is an ultrarunning event at Cooper River Park with 12 hour, 24 hour, 101.25 mile and a Glow Up Loop on a 3.75 mile paved loop.

Volcanic stages rugged trail races around Mt. St. Helens with a full circumnavigation 50K and a 25K that shares iconic volcanic terrain, steep climbs, boulder fields, river crossings, and substantial elevation change. Both races start and f..

A 15 mile mountain trail run on August 1, 2026 that climbs about 3,100 feet and reaches over 12,000 feet at Kennebec Pass. The course offers alpine terrain and views of the Animas and Dolores River valleys while supporting La Plata County S..

A multi distance trail event on Blue Hill Mountain in Blue Hill, Maine featuring 5k, 10k, 25k and 50k looped courses, aid stations, and donated proceeds.

Oakadoke Trail Runs in Valparaiso, IN features single track trails with varied terrain and pond views. Three distances are offered, aid stations are spaced along the route, and a post race meal is provided; the event is cupless.

High alpine trail running in Aspen with 50K, marathon and heavy half marathon options and a finish festival at Rio Grande Park.