Trail Running Calendar United States 2025-2026

Challenge yourself on the Cirque Series at Arapahoe Basin on September 5, 2026 in Keystone, Colorado. This scenic 9.4 mile mountain course with 2,211 ft of climbing delivers steep, technical trail and big alpine views in a capped field.

Experience high country single track around Taos Ski Valley with alpine climbs to Kachina and Fraser peaks. Choose the marathon or one of two half marathons, enjoy views and support local trails.

The TARC Fall Classic will take place in Carlisle on Saturday 5 September 2026. You can run between 10 and 50 miles.

Experience rugged singletrack and sweeping ridge views at the Noble Canyon Trail races in Pine Valley CA on September 5, 2026. Choose a challenging 50K or a scenic 15K through pine forests, granite slopes and canyon switchbacks.

Tuscazoar Endurance Race near Dover Ohio centers on a rugged 25 mile loop with distances from 25 to 100 miles. Day and night options, staffed aid stations and drop bag support make it a true ultrarunning challenge.

Tejas Dirt Festival returns Sept 5, 2026 at Camp Eagle with trail runs, rucks, mountain biking and quirky fun races across rocky, hilly terrain. Choose distances from family friendly miles to 50 km for a lively outdoor challenge.

Run the Not a Sprint Ultra in Forest City, NC on a mostly flat 8.34 mile out and back course with shady sections and well stocked aid stations. Choose 3, 6, or 12 hour timed events and chase 50 miles in the 12 hour race.

Tackle rugged single track trails and steep climbs at Mammoth Bar in Auburn, California, with sweeping views of the American River Canyon. Choose a half marathon or 10K and test your trail legs at this scenic, challenging outing.

Run the Golden Harvest in Toledo OH on Sept 6, 2026 with a half marathon, 10k, 5k, mile and kids dash plus a virtual option. Timed races include chip timing and medals and every finisher gets a designer shirt.

Run a scenic course from the Little Belt mountains into Harlowton, ending with a handcrafted pint at Gally's Brewing Company. Choose full, half, 10K or 5K and support AIDSPIRIT USA as funds help orphaned and vulnerable children in Uganda.

Celebrate fall with the Golden Harvest Half Marathon, 5k and 10k in Indianapolis on September 6 2026. In person or virtual options, shirts and finisher medals, plus family friendly races and a kids dash for younger runners.

Mendocino Running Festival invites you to tackle a scenic 6 mile loop with race options from 10K and half marathon to 6 hour and 12 hour timed events. Camp on site and enjoy yoga, live music and communal meals for a true festival weekend.

Run the scenic North Shore along Lake Superior at the Superior Fall Trail Race, Sept 11 and 12, 2026. Choose from 100, 50 or marathon distances on the Superior Hiking Trail with stunning views and reliable aid stations.

The Rut Mountain Runs is a three day mountain race in Big Sky, Montana, Sept 11 to 13, 2026 presented by The North Face. Choose from distances from a VK and 1K kids run to epic ultras that tackle dramatic alpine terrain.

Run Woodstock is a multi day trail running festival near Gregory, Michigan in September 2026 featuring races from kids fun runs to 100 mile ultras, plus music, yoga, camping and on site community activities. Registration opens 12/1/25.

The Wasatch 100 is a rugged 100 mile point to point ultramarathon across the central Wasatch Mountains held each year after Labor Day. Expect roughly 24,000 feet of climbing, stunning mountain vistas and 15 aid stations en route to Soldier..

The Goat Rattler 100 is a rugged 100 mile ultramarathon in North Ogden Utah featuring nearly all single track, big Wasatch views and about 22,000 feet of climbing. Expect a tough 36 hour cutoff; not recommended as your first 100.

Scenic 7 mile 11 km Emerald Bay Trail, a point to point single track from Eagle Point to Lester Beach with moderate climbs and granite steps. Take in lake views, then hop the shuttle back and enjoy post race snacks.

Take on the Odyssey Trail Running Rampage at Douthat State Park on September 12, 2026, with four loop distances from six miles to 50K on rugged trails with steep climbs. Expect chip timing, a performance shirt, finisher pint mug and post ra..

The Cutthroat Classic will take place in North Cascades Scenic Highway on Saturday 12 September 2026. You can run 10 miles.