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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 3954 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!

April 2027
Trail run at Forever Farm in Mertztown PA with Half marathon, 10k and 5k on marked singletrack plus post-race BBQ, beer, kids bike course and camping.
Join the Spring Fling at Lady Bird Johnson Trail Park for a variety of distances including a 5K, 10K, and Kids Dash featuring live music and finisher medals.
Spring Fling in Oklahoma City offers races from a Kids Dash to 10K plus a virtual half marathon, with medals, shirts, aid stations, and volunteer options.
A chip timed 5K run/walk at Corteau Vineyards on a two lap grass course through the vines, with race swag, a wine pour and proceeds supporting ZERO Prostate Cancer.
A trail event near Highlands Ranch, Colorado offering 21 mile, half marathon, 10K and 5K courses on mostly dirt single track with rolling hills and aid stations on longer distances.
A naturist 5K run and 2K walk on April 11, 2027 at Lake Como Family Nudist Resort with resort access included and a background check requirement for guests.
Trail races of 100K, 50K and 30K through the Columbia River Gorge staged at Marine Park in Cascade Locks across April 16 to 18, 2027.
A 34 hour endurance event in Capitan, New Mexico with looped trail courses, multiple distance options including 100 and 80 miles, plus 12 and 6 hour races.
A multi-format ultrarunning weekend in Columbia, MO featuring 24, 12, and 6 hour races, a 24 Hour Tag Team Championship, and a youth 1 Hour Cub Run.
A team relay in Chillicothe, Ohio on April 16 and 17, 2027 featuring trail running and fundraising for teen drug prevention.
A 12 hour or 24 hour solo or team endurance event at Oak Mountain State Park where athletes log as many triathlon, duathlon, aquabike or single discipline laps as possible within the time limit.
A multi-distance weekend running event in Corona, CA featuring timed ultras, a relay option, and required fundraising for youth programs.
Second annual Superheroes for Autism 5K in Center, Texas features a 5K run/walk and a 1.5 mile walk, roll, stroll with separate registration fees and dates.
An overnight lap race in Reedley, California, held around the full moon. Options range from 12K and timed 6, 12, and 24 hour categories to 100 miles, plus 2 to 4 person relays, camping, and full aid station support.
A women only 10K trail loop in Auburn with aid stations, age group awards, packet pickup the day before, and travel prizes to Spain awarded by placement and random draw.
An Arden Hills event featuring a 30K foot march with an 11 kg ruck plus 30K and 5K trail runs; proceeds support military and veteran programs.
A half marathon trail run through Starker Forests near Blodgett, Oregon, with a limited field, Trail Sisters policies, and an optional combined run and MTB Ultimate Mudslinger competition.
A marathon and half marathon along the Jordan River Parkway in South Jordan, planned for April 2027, mostly on paved trails with aid stations and a 7.5 hour cutoff.
April 17, 2027 trail races at Hyner Eagles Nest offering 25K and 50K courses with major climbs, vistas, stream crossings, and limited entry.
Trail 5K and 10K at Preservation Park in Thompson's Station, TN, with proceeds supporting a local nonprofit for foster children.
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