Trail Running Calendar United States 2026-2027

The Crazy Mountain 100 is a rugged point-to-point ultramarathon through Montana's Crazy Mountains. With 23,000 feet of climb and remote, technical terrain, it's a qualifier for Hardrock and Western States. The event starts in Wilsall and fi..

Traverse the rugged North Dakota Badlands on the famous Maah Daah Hey single track trail with distances ranging from 5k to a 116 mile ultra marathon through stunning buttes and prairie grasslands.

Experience the sunset at Nine Mile Recreation Area with a series of trail runs on single track mountain bike paths. Choose from multiple distances and navigate technical terrain using your own lights as the sun goes down.

Experience a true mountain ultra through the rugged alpine peaks and lakes of Northern Colorado. Navigate technical trails and high ridges across 60km or 100km courses in a wild wilderness setting.

Resurrection Pass Ultras are low key, mostly self supported 50 and 100 mile trail races across Alaska's historic Resurrection Pass Trail between Hope and Cooper Landing. The 2026 edition runs July 24 25.

South Bay 24 is a timed endurance challenge on a flat 1.22-mile loop in San Diego. Runners choose from 24, 12, or 6-hour events, aiming for personal records or the 100-mile buckle. The event includes a campsite, meals, and a special prize f..

Event Details La Nuit is a night trail run held at Cedar Ridge Preserve in Dallas, Texas. The event takes place over a Friday evening into Saturday morning. Distances The event features several timed and fixed-distance races: 9hrs (9 Hour)..

Run through the fields of Masterson Station Park in this cross country race featuring 5k and 10k distances. Enjoy a festive afterparty with bourbon tastings, music, and food trucks.

Test your stamina at this Fort Worth endurance event featuring 24 and 48 hour timed runs on a 1.25 mile loop. Enjoy professional timing, on site camping, and air conditioned facilities during this summer challenge.

Participate in the 49th annual Speedy Spaniard River Trail 10K along the scenic Spanish Fork River. Enjoy a chip timed course ending with refreshments and prize drawings with a free shuttle back to the start.

The Webster Trail Classic is a scenic trail run through three distinct parks in Webster, NY. Runners can choose between a 10-mile or a 3.5-mile course, each offering varied terrain. A free kids fun run is also part of the event.

The Lost Sierra Endurance Race offers 25K, 50K, and 100K trail runs through the scenic and rugged northern Sierra Nevada near Downieville, California. The 100K is a demanding out-and-back route, while the 50K is a point-to-point course with..

The Mighty Mosquito Trail Race in Mendon Ponds, NY offers a weekend of trail running with distances from 5 to 100 miles, plus relay options. The event features solo and team formats, including a unique nighttime 50K. All proceeds support th..

The Sweaty Backyard Cox Ultra is a Backyard Ultra in Concord, NC. Runners complete a 4.167-mile loop every hour until only one remains. The race follows the classic last-runner-standing format.

Experience the mountain trails of Colorado Springs at the Pikes Peak Ultra. Choose from four race distances that take you through high elevation terrain including Cheyenne Canon and the summit of Mt. Rosa.

Event Overview The Standhope 100 is a 100-mile endurance trail run held on July 25-26. It is described as Idaho's highest trail race, taking place in the remote Pioneer Mountains. The course covers over 23,000 feet of climbing across remote..

Join an obstacle course event at Sunday River Resort in Newry Maine featuring a 5K course through ski trails and wooded mountain terrain.

Experience a unique desert night run under the Full Buck Moon on a scenic looped course. Choose between distances ranging from 9 miles to a 50k ultramarathon through manzanita groves and single track trails.

Experience a scenic trail journey through Cuyahoga Valley National Park and Summit Metro Parks. Choose from 100 mile, 50 mile, marathon, or relay distances in this historic Northeast Ohio endurance event.

Experience the perimeter trail of Grand Island in Lake Superior. The course features stunning shoreline views, sandstone cliffs, and a mix of single-track and forested paths. Choose from 50K, marathon, or half marathon distances.