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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!

September 2027
A 13.5 mile trail half around Lory State Park near Fort Collins with mostly singletrack, about 2,000 feet of elevation change and a 5.5 hour cutoff.
A four mile obstacle course in Bixby, Oklahoma with over 25 obstacles, a kids course for ages 12 and under, and group registration options.
Chip timed 5K at Kentucky Horse Park on the Hunter Pace turf and cross country course with awards, shirts, ribbons, photos and proceeds to the Kentucky Horse Council.
Trail race weekend at Douthat State Park offering 50K, 26, 13 and 6 mile loop courses with significant elevation and stocked aid stations.
Trail races at Gannett Hill in Ontario County Park featuring a half marathon and a short course, on-course aid stations, post-race food and volunteer-supported parking.
Riverbend Ultras in Jupiter FL features 12 hour, 50K and Fun Run options on looped trails along the Loxahatchee River.
Three trail races in Camden Maine offering a 50K, a 20k on wide trails, and a 10K with ocean views and significant elevation.
Multi discipline adventure races in Olathe KS featuring 6 hour trekking biking and paddling courses and 2 hour on foot courses across prairie, trails, and lake.
Two trail races on Mt. Nebo with 13.1 and 20 mile courses over rocky, climbing singletrack; free entry with optional $15 shirt, proceeds support local teams and Friends of Nebo.
A 10.5 mile singletrack run on the Pacific Crest Trail over Cutthroat Pass, organized in six self-seeded waves with a cupless aid station at mile seven.
Trail ultramarathon at Gorges State Park in Sapphire, NC on September 11, 2027 offering 50K and 25K courses on technical, high-elevation trails with aid stations.
A half marathon down Cedar Canyon and an Adventure 5K use bus transport to canyon start points and finish at Bicentennial Park in Cedar City, with aid stations and trail segments.
Weekend trail festival in Mendocino Woodlands Park with looped single track courses, options for 10K and half marathon, timed 6 and 12 hour events, camping and on-site meals.
Trail races of 15K, 30K and 45K at Pleasant Creek Park in Palo, IA, on a 15K looped trail with awards, cash prizes and a post-race cookout.
Trail running event in Rosendale, NY with 70 mile, 30 mile and half marathon options on the Shawangunk Ridge Trail and minimal course support.
Finger Lakes Mud Run in Auburn, NY on Sept 11, 2027 is an obstacle course with about 35 obstacles and a shorter Mini Muddy for children, with proceeds supporting local charities.
Off-road triathlon and trail runs near White Lake, WI featuring a 3-mile Class II paddle, 13-mile technical mountain bike, and rugged riverbank trail runs.
Trail event in Johns Island, SC on September 11, 2027 offering 5K, 10K, half, marathon and a new 50K on a 3.3 mile loop with aid station and onsite camping.
Trail ultraraces in Wellsboro PA on Sep 11, 2027 offering 100 mile, 100K, 50 mile and marathon distances along the scenic Pine Creek Rail Trail.
Obstacle course races at Indiana Dunes National Park on September 12, 2027 include 6.2 mi, 3.1 mi and a K9 3.1 mi course inspired by military landscapes.
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