Trail Running Calendar United States 2026-2027

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.

Tough Mudder Indiana at CERAland Park on August 1, 2026 offers 15K and 5K obstacle courses across woodland and farmland, plus spectator, VIP, group, and volunteer options.

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 Colorado features 50 mile, 50K and Half Marathon courses on high‑elevation mountain trails with maps, aid stations, and midrace drop options.

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.

A night trail race at Cedar Hill State Park with approximate distances 5K, 10K, 18K, 36K and 54K on the DORBA trail system. Hydration devices are required, aid station coverage varies, and illumination is needed after dark.

Mountain ultramarathon races at Eagle Point Resort in Beaver, Utah (100K, 70K, marathon, half) were scheduled for 2026 but the event was canceled due to the Cottonwood Fire.

A simultaneous trail running and horseback endurance event in Burgettstown, PA on August 1, 2026, offering distances from a 10k fun run to a 50 mile ride. Course terrain includes single track, gravel and grassy meadow, with a required safet..

Trail and road races at Green Valley Lake offering 5K, 10K and half marathon distances with mixed paved and dirt terrain, aid stations about every 1.5 miles, chip timing and post-race activities at the Community Garden.