Trail Running Calendar United States 2025-2026

Little Dog's Backyard Ultra, held in Bell Buckle, Tennessee, is a historic and iconic event in the backyard ultra running community. Known as the birthplace of the Backyard Ultra format and the site where the World Championship is decided, the race features a 4.1667-mile loop that runners repeat eve..

The Above the Clouds Ultra is an annual trail running event held in Woodland Park, Colorado, known as the "City Above the Clouds." It offers two race distances: a 50K ultra and a 10K. The course features fast, flowing singletrack trails around Rampart Reservoir, with stunning panoramic views of Pike..

The Export 100 Trail Run is a challenging 101-mile out-and-back ultramarathon held in western Pennsylvania, featuring the scenic Westmoreland Heritage Trail, West Penn Trail, Morosini Preserve, Duff, and Pleasant Valley Parks. Set in October, runners experience vibrant fall foliage while tackling ap..

The Lake Yahou 50K is a trail running event held in Anniston, Alabama, featuring three race distances: 50K, 10 miles, and 5.5 miles. The course consists mainly of runnable, non-technical single-track dirt trails with some rocky and rooty sections, offering a natural but accessible challenge. The 50K..

The Perpetua Coast trail runs take place in the scenic coastal village of Yachats, Oregon, within the Cape Perpetua National Scenic Area. The event offers three distances: a 50K, a 20-mile lollipop-loop course, and a point-to-point half marathon. Runners experience diverse Oregon Coast landscapes, i..

The Baker Lake 50k is a challenging trail ultramarathon held in a scenic fall setting at Baker Lake, Washington, within the Mt. Baker-Snoqualmie National Forest. The 31.2-mile out-and-back course starts and finishes at Kulshan Campground, offering free camping for participants.Runners traverse a sin..

The Wild Wild West Marathon & Ultra, held in Lone Pine, California, is the oldest trail marathon in the U.S., celebrating over 46 years. This scenic trail race traverses the Alabama Hills and the foothills of Mt. Whitney, offering stunning natural views.Participants can choose from a 50-mile ultra,..

The Haunted Heritage Trail Fun Run / Hero Walk in Dyersville, Iowa, offers a festive and spooky running experience with multiple events including a 5K Haunted Heritage Trail Fun Run, a 10K Trail Run, and a 1 Mile Hero Walk. Participants are encouraged to wear Halloween costumes as they navigate a 3...

The Back On The Ranch Trail Run, held at the private Sand Creek Ranch in Los Olivos, California, is an annual trail running event featuring multiple timed race options: 3, 6, 12, 24, and 48 hours. Participants complete as many 3.25-mile loops as possible on a scenic course with about 302 feet of ver..

Run-a-Muck is an annual 5K running and walking event held in the scenic Willistown countryside, supporting local land preservation efforts. Participants can choose to run the 5K or "muck" the cross-country trail, which features diverse terrain, encouraging appropriate attire. The event offers a fest..

The Star City San Bruno Mountain Half Marathon & 5K, held in Brisbane, California, offers a scenic trail running experience with spectacular views of the Pacific Ocean, San Francisco Bay, and the city skyline. The half marathon course is 93% trail, featuring 2,400 feet of elevation gain and a thrill..

Lastest Not Fastest is a unique last-person-standing trail race held on Hamilton Island in the scenic Columbia River Gorge, Washington. Participants run a 4.13-mile loop with minimal elevation gain (103 feet) along flat trails featuring river views, forested areas near Bonneville Dam, and a small hi..

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The race features a challenging course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park's western side..

The Devil's Toll Race, held in Middle Brook, Missouri, is a challenging 13-mile event across rugged terrain on the Ozark Trail. Participants traverse from Taum Sauk Mountain, Missouri's highest point, past Mina Sauk Falls and the Devil’s Toll Gate rock formation, continuing over Proffit and Wildcat..

The Bear Lake Ultra is a 24-hour endurance running event held at Bear Lake Camp in Lapeer, Michigan. Participants run or walk as many loops as they can on a 3.1-mile course featuring rolling hills, single-track and wide trails, grass, and bridge crossings. The event offers a fun, flexible atmosphere..

The Arches Marathon, held in Moab, Utah, is a popular fall trail running event offering distances of 15K, half marathon, marathon, and 50K. The race starts near the scenic Behind the Rocks Wilderness Study Area and features a course that climbs toward the La Sal Mountains, transitioning from sandy d..

The Girdwood Marathon, held in Girdwood, Alaska, is a challenging trail race set for October 4, 2025, featuring a full marathon (26.2 miles), half marathon, juniors half marathon, and a new 5K trails race. Starting and finishing at the Alyeska Day Lodge, the courses traverse over 30 scenic trails th..

The Swiss Valley Trail Races, held in Peosta, Iowa, offer runners three distance options: 5.2 miles, 25K, and 50K. Set within the scenic Swiss Valley Nature Preserve, the course features rugged terrain, creek crossings, and steep inclines, with each 5.2-mile loop climbing approximately 875 feet. The..

The Chernisky Ghost Town Trail-a-thon, held in Ebensburg, Pennsylvania, is a multi-distance running and biking event set for October 4, 2025. It features a marathon (26.2 miles), 15-miler, 5k, and a unique "Couch Potato 0.0k" for casual participants. The marathon and 15-miler courses traverse scenic..

The West Elk Challenge is a scenic point-to-point trail marathon held in the North Fork Valley of Colorado, showcasing the peak fall colors. The 26.2-mile course starts at Crawford Reservoir State Park, traversing gravel roads through farms near Needle Rock, then climbing singletrack trails on Mt. L..