Trail Running Calendar United States 2026-2027

A coastal trail event in Anacortes offering marathon, half marathon, 5 mile and kids race on looped courses with ocean views. Half and full marathon runners cross Deception Pass Bridge and finish near Bowman Bay.

Miami 100 is an open road 100 mile ultramarathon through Miami neighborhoods with progressive course directions and checkpoints. The field is limited to 50 runners and an optional 130 mile challenge adds 30 miles after the main race.

A community-run 24 hour endurance event at Palmer Lake, Colorado, on a 0.82 mile loop at 7,240 feet. Top three overall awards and buckles for 100 mile finishers; five dollars per registration supports the Palmer Lake Parks Committee.

A Last Person Standing backyard ultra near SP Crater in Flagstaff, AZ where runners repeat a 4.167 mile loop each hour until one runner completes the final loop. Rules limit on-course aid and assign each runner a 10 by 10 crew space.

Trail running at Cossatot River State Park in Wickes, Arkansas with 12.5 mile and 25 mile courses. Rocky single track, significant elevation gain, aid stations, and a no cup policy for water.

Challenge yourself on the last Sunday in September with a 2.5-mile ascent of Yonah Mountain, climbing 1,650 feet to the summit. Choose to run, hike, or join the ruck division carrying a weighted pack. Enjoy the earned views before hiking ba..

Timed running events on a 1.5 mile loop at Gallatin Valley Regional Park in Bozeman, Montana. Options include 24 hour, 12 hour, and 4 hour races with one aid station and crew access.

Midwest Everest is a multi distance trail event at Cannonsburg Ski Hill in Belmont, Michigan on Sept 26 to 27, 2026. It features a 100 mile course with over 30,000 feet gain, a 50 mile race, plus 10K and 20K options.

Experience a trail run through the Uinta Mountains and Ashley National Forest. With a half marathon and 10K option, runners enjoy scenic views of Dry Fork Canyon and autumn foliage along the Flume Trail.

KROP is a trail running event on the rugged Welling Ridge Trails in Oklahoma. Choose from six distances on a scenic 4-mile loop course, with unique challenges and on-site food. Every finisher receives an award.

The Wild Boar Challenge is a 5-mile off-road obstacle course in Saint Charles, Iowa. Organized locally, it lets runners help design the obstacles they'll tackle. All funds raised support the local Iowa community.

A 24-hour looped ultra at Bowling Green Hot Rods Stadium with individual 24- and 12-hour options plus a four-person relay. Prize money for 24-hour winners equals miles run, and a belt buckle is awarded at 100 miles.

A community trail event in Wilkesboro on September 26, 2026 offering 5K and 10K timed runs, a 5K untimed walk, and a virtual option, with chip timing and proceeds supporting the American Cancer Society.

This trail run/walk in Greenville's Patriot's Park is a 5K event supporting childhood cancer research. It takes place on scenic trails and is inspired by a personal story of courage.

A backyard ultra at Lake Ahquabi where runners complete repeating 4.167-mile laps, each within 60 minutes. The last runner to finish one more lap than anyone else wins; there is no preset race cap.

Experience the natural beauty of the Big South Fork National River and Recreation Area with a loop trail race featuring 17.5 mile and 10K options primarily on single track terrain.

Celebrate the 50th anniversary of this classic trail race in Helena. Experience 1,300 feet of elevation gain on single track trails with sweeping views of the Big Belt Mountains and downtown Helena.

The Watershed 5K runs through neighborhood streets and trails around the school in Fairbanks. The event raises funds for school programs and includes a pancake breakfast fundraiser.

Experience the debut of the Utah Marathon at the scenic Oakley Rodeo Grounds. Choose from five distances including a unique 19.65 mile Merikós and enjoy mountain views with live music and local western charm.

Experience a unique trail race starting inside the Natural Bridge Caverns before winding through beautiful wooded hills. Choose from standard distances or test your grit in the Last Person Standing endurance challenge.