Trail Running Calendar United States 2025-2026

The Flutters and Foliage Endurance Run, held in Cohoes, NY, is a unique fundraising event supporting Flutters of Hope, a nonprofit aiding individuals and families affected by eating disorders. This endurance run features multiple race options, including 1-hour, 3-hour, and 6-hour events, with solo a..

Rocky's Backyard Ultra is a unique ultra trail race held at the YMCA of the Rockies in Estes Park, Colorado, known as the highest organized Backyard Ultra in the world. Runners complete 4.167-mile laps on a challenging singletrack course featuring about 500 feet of elevation gain and loss per lap, w..

The Flagstaff Marathon, known as "The Coolest Marathon in Arizona," takes place in Flagstaff, AZ, at the Arizona Nordic Village within the scenic Coconino National Forest. This event features off-road courses through ponderosa pine and aspen forests at over 8,000 feet elevation, offering marathon, h..

The SFRC Women's Headlands Half Marathon is a scenic trail running event held in the Marin Headlands, starting and finishing at Rodeo Beach near Sausalito, California. The race features a challenging 12.6-mile half marathon with 2,494 feet of elevation gain, alongside a 6-mile 10K option. Both cours..

The Dana Peak Trail Run takes place at Dana Peak Park in Harker Heights, Texas, along the north shore of Stillhouse Hollow Lake, about an hour from Waco and Austin. The event features challenging trail runs with rocky terrain and significant elevation changes, offering scenic views of the lake from..

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..

The New River Gorge Wilds Trail Run, held at ACE Adventure Resort in Oak Hill, West Virginia, offers runners a chance to experience the stunning scenery of the New River Gorge. Scheduled for October 4, 2025, the event features three race distances: a full marathon, half marathon, and 5K, catering to..

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..

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 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 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 Over The Creek and Through the Woods Trail Run is a scenic event held at Pierce Cedar Creek Institute in Hastings, Michigan. Participants can choose between a 1-mile fun run and a 5K trail race, both set amidst the institute's beautiful 850-acre landscape. The event aims to promote outdoor activ..

The Buck 50 is a challenging 50-kilometer ultramarathon held in Kattskill Bay, New York, along the scenic southern Adirondacks near Lake George. The course features rugged, remote trails that traverse four of Lake George's tallest peaks, including Buck Mountain, Sleeping Beauty, Black Mountain, and..

The NipMuck Trail Marathon, held in Ashford, Connecticut, is a challenging 26.4-mile trail race along the scenic Nipmuck Trail. The course features diverse terrain including rocks, roots, mud, and wood bridges, with a route that heads south to Route 44, returns to the start, then goes north to Bosto..

Trust Trail Fest, held at the Kennebunkport Conservation Trust headquarters in Kennebunkport, Maine, offers participants a choice between a 5k walk/run and a 10k run through scenic forest trails. The course features natural terrain with rocks, roots, and possible mud, providing a challenging and imm..

The KMT Fall Foliage Frenzy is a timed trail running event held in Montebello, NY, featuring 3-hour and 6-hour race options. Participants run on a challenging 2.33-mile loop course in Kakiat Park, adjacent to Harriman State Park, with approximately 660 feet of vertical gain per lap. The course offer..

The Baker Lake Classic 25k is a scenic 15.6-mile trail run held in the Mt. Baker-Snoqualmie National Forest in Washington. The course follows the eastern shoreline of Baker Lake, featuring old-growth forests with giant trees draped in lichen and moss, regrown Douglas firs after the 1843 Mt.Baker eru..

The Ponte Vedra 10-Miler, presented by Alter Ego Running, is a vibrant running event held in Ponte Vedra Beach, Florida. Scheduled for October 5, 2025, it features a 10-mile run, a 5K run, virtual race options for both distances, and a Kids Obstacle Course with over 10 challenging stations. The race..

The Aggie Ram Trail Run 5k will take place in Walpole on Sunday 5 October 2025. You can run between 5 and 5 kilometers.

The Spooner's Cove Trail Run, held at Montana de Oro State Park in Los Osos, California, offered scenic trail running with views of rugged cliffs, sandy beaches, and the ocean. The event featured multiple distances: an 8K with minimal climbing along the bluff, a 13K ascending the 1,347-foot Valencia..