Trail Running Calendar United States 2026-2027

Join the new Mammoth Bar Trail Runs on Sept 6, 2026 in Auburn CA with Half Marathon and 10K on single track and double track trails. Expect steep climbs, thrilling descents and sweeping views of the American River Canyon.

Run a scenic route from the Little Belt mountains into historic Harlowton and finish at Gally's Brewing Company. Choose marathon, half marathon, 10K or 5K and support AIDSPIRIT USA helping children in Uganda.

Celebrate Labor Day at William Heritage Winery with a chip timed 5K on scenic vineyard paths plus one mile and kids races for all ages. Finishers 21 and over get a souvenir glass and a complimentary wine while supporting HEADstrong.

Run the scenic trails of Mount Diablo with distances from 4 miles to 50K, featuring sweeping Bay Area views. Fully stocked aid stations, chip timing, and a cupless format make this a true trail adventure for every runner.

Run a scenic mixed terrain 5K, 10K or Kids Mile over rolling hills at Thousand Hills Ranch in Pismo Beach. Stay for a family friendly festival with live music, local vendors, and fundraising for CCAF and 17 Strong.

A timed walking and trekking event on Cannon Mountain in Franconia, NH with 7, 14, 21, and 28 mile loop options across forest, rocky scrambles, and ridgelines. Optional weighted vests are allowed and finishers within 10 hours earn patches o..

Wilcox Wild on September 6, 2026 in Stony Creek New York is a 31 miles trail ultra that loops from Harrisburg Lake to Wilcox Lake via scenic singletrack and waterfalls. Limited entries require prior experience and include a catered post rac..

Run the shaded trails of Turkey Mountain in Tulsa this September with 2 mile or 5 mile options. Every finisher gets a race shirt and medal, and the event wraps up the Turkey Triple series.

Run and camp at Mendocino Woodlands Park for a weekend of scenic trail running, live music and community vibes. Choose 12 hour, 6 hour, half marathon or 10K on a 6 mile single track loop with creek crossings, hot showers and post race lunch..

Experience rugged, scenic trails on the North Shore of Lake Superior at the Superior Fall Trail Race near Lutsen, MN. Choose 26.2, 50 or 100 mile courses and enter the 2026 lottery Jan 1 to Jan 15 for your chance to run.

Run The Rut in Big Sky Montana a three day mountain running festival at Big Sky Resort with races from a Vertical Kilometer to ultras and a kids 1K. Epic alpine terrain, festival vibes and options for beginners to elites.

Run Woodstock is a two day running festival in Gregory, MI on September 11 and 12, 2026 that blends forest trail races with live music, yoga and on site camping. Distances range from 5 miles to 100 miles, with peace sign medals for finisher..

Wasatch 100 is a point to point 100 mile ultramarathon across the rugged Wasatch Mountains, tracing ridge line single track and alpine vistas. Expect massive climbs, technical terrain and a true mountain adventure finishing at Soldier Hollo..

Join the American Heroes Run in Longmont, Colorado on September 11 and 12 to honor the victims and first responders of 2001 on a flat, fast 1.05 mile loop. Choose distances from 5K to 100 mile with timed and virtual options plus shirts and..

Run around stunning Emerald Bay in Lake Tahoe with a point to point 7 mile trail through granite steps and pine forests. Finish with a medal, event shirt, free race photo and shuttle back to the start for easy logistics.

Run the Odyssey Trail Rampage at Douthat State Park on Sept 12, 2026, with courses from six mile to 50K through waterfalls, creek crossings and rhododendron tunnels. Expect big climbs, chip timing, a tech shirt and a finisher mug.

Run the Cutthroat Classic along the Pacific Crest Trail through the North Cascades with stunning mountain scenery. Six self seeding waves welcome all levels including an elite wave, and kids 17 and under can enter free with a signed waiver.

Take on the Mogollon Monster on the Mogollon Rim near Pine, Arizona, with a 100 mile and a 42K over a weekend. Expect high altitude, repeated rim climbs, technical singletrack and sweeping forest views in a true ultramarathon test.

Take on the Hawk Hundred at Clinton State Park in Lawrence KS with a 25 mile loop offering marathon to 100 mile options. Technical rolling trails, chip timing, live updates and stocked aid stations create a true ultrarunning test.

Hit the trails at Ontario Summit Trail Races in scenic Ontario County Park at Gannett Hill, with short and long course options for trail runners of all levels. Enjoy camping, post race food and drinks, giveaways and a friendly community vib..