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Trail Running Calendar United States 2026-2027

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Explore the best trail runs in the United States for 2026-2027! Our updated list features 4119 exciting trail runs across the country. Find your next trail run in the United States below and join the trail community at these great events!

August 2027
Obstacle course weekend in Payette, Idaho featuring Sprint 5K, Super 10K, Beast 21K and kids races across volcanic high desert terrain.
A one mile family mud course in Morganton NC with 16 obstacles, a lazy river and free event photos, held on a private motocross compound.
Multi-distance trail race on Blue Hill Mountain, Maine, featuring looped 5k, 10k, 25k and 50k courses across wildflower fields, technical forest trails, and coastal viewpoints.
Mountain trail races in Winter Park, CO with 50K, 21K and 10K courses on singletrack and dirt roads, finishing in town at Hideaway Park.
High-elevation trail event in Fairplay, Colorado offering 50-mile, 50k, and half marathon courses with stocked aid stations and specific pacer and drop bag options.
An 11 miles mountain trail race in Fruit Heights with finisher medals, shirts and refreshments; participants must provide their own ride from the finish.
A loop style 100K ultramarathon from Willamette Pass across remote single track trails and mountain climbs with views of Waldo Lake; not for beginners.
Mountain road and trail races at Green Valley Lake offering 5K, 10K and half marathon courses with aid stations, chip timing, and post-race community activities.
Mountain trail race at Swain Ski Resort of about 6.5 miles and 2,500 ft gain, a 2027 USATF Niagara championship event with climb and descent prizes.
Obstacle and trail races including 5K and 10K options plus kids races at Diamond Lake Resort on August 7, 2027, with proceeds supporting MentorKids Kentucky.
Aug 7 2027 at CERAland Park in Columbus IN, the Hurricane Heat 4 is a four hour obstacle course heat with 12 challenges for participants 18 and over.
A 15 mile mountain trail race on August 7, 2027 in the La Plata Mountains, with 3,100 feet of elevation gain and proceeds supporting La Plata County Search & Rescue.
Remote Mt. St. Helens trail races featuring a full 50K circumnavigation and a 25K with volcanic terrain and technical sections.
Timed loop event at Cooper River Park in Pennsauken NJ featuring a 3.75 mile paved lap, relays, 12 and 24 hour options, a 101.25 mile 100 Miler and a night loop.
Community 5K in Cody to raise funds for Wyo Hoofbeats on a residential and riverside trail course with packet pick up at Cody Regional Health.
A Scottish Highlander themed obstacle race in Pingree Grove on August 7, 2027 offering 50K, 15K, 5K, family 3K, a torch lit night run and a haunted 5K.
12K, 25K and 50K trail races from Fairhaven Park through Larrabee State Park featuring lakes, ridgelines, technical singletrack and substantial elevation gain.
Trail races at Stanley Eddy Park Reserve near Annandale MN offering a roughly 32 mile Big Eddy and a 13.1 mile half with multiple aid stations and lodging at Chi Rho Center.
Trail races on the Dahlgren Railroad Heritage Trail in King George VA, with a 50K and a half marathon plus finisher shirts and medals.
Trail 5k, 10k and half at Third Winchester Battlefield with chip timing, finisher medal and technical shirt; virtual option and series points available.
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