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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 3913 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 2026
Beach out and back race with a five mile, 5K and one mile, finisher medals, post-race burrito and free beer, presented by JTC Running.
Two fully supported trail ultras in Roxborough State Park with technical singletrack, significant elevation gain, and a finish at the Sharptail Trailhead.
Ultrarun on the Erie Canal towpath in Lockport, NY with 100, 50 and 25 mile options, marina facilities and staffed aid stations.
Trail races in Fahnestock State Park near Cold Spring NY offering 50K, 25K and 5.5 mile options with on-course aid and a post-race meal.
Loop-based endurance event at Fort Loudon State Historic Park with 3 hour, 6 hour, 12 hour and 24 hour races plus a 6 hour ruck division.
Two days of mountain trail running at Angel Fire Resort on August 15 and 16, 2026. One day is a 5 mile summit ascent with lift descent, the other a 10 mile up and down run; a Double entry combines both days for a special prize.
Experience a technical mountain race in Palmer featuring a 5000 foot vertical gain over 8 miles. Navigate steep ridges and alpine tundra from Government Peak to the historic Independence Mine in this point to point Alaskan challenge.
A 10 km trail race at Battelle Darby Creek Metropark near Galloway, OH. ORRRC members run free; non-members pay $10 for ages 15 and up while ages 14 and under are free.
Night Claw is a night trail race in Glen Rose TX on Dinosaur Valley State Park trails, offering multiple distances and an optional Claw Challenge with a tear tag chase.
A community running event in Vian, Oklahoma on August 15, 2026 offering a 5K trail run, a 1K paved fun run/walk, and a virtual 5K available through August 22.
Hill of a Race 2026 in Bloomington, IL combines a lap based Endurance Challenge with multiple 3 mile obstacle course waves, including competitive men, women, masters and several recreational waves.
A 50K trail ultramarathon near San Francisco with about 6,600 feet of climbing across Coastal, Miwok, Matt Davis and Dipsea trails and a $10,000 prize purse.
Test your endurance at Ferncliff Camp with a multi loop trail race near Little Rock. Enjoy a post race cookout and pool access after navigating inclines and water crossings across various distances.
A 5K and a 1 mile run and walk on the Pennsy Trail in Greenfield, IN, held at Sister Cities Park next to the police department. The course is an out and back along the trail and race and volunteer registrations have set dates and fees.
A three-leg relay on the Ozark Trail near Steelville MO combining running, mountain biking and paddling for teams of two with proceeds supporting the Ozark Trail Association.
Test your endurance at Prairie du Chien's first backyard ultra featuring a 4.167 mile trail loop through La Riviere Park. Run one lap every hour until only one participant remains or enjoy a relaxed one lap fun run.
25K trail race in Cook Forest State Park, Cooksburg PA on Aug 15 2026 featuring a loop of more than 17 miles, river views and old growth forest with three aid stations.
Trail half marathon, 10K and ruck events at Riley Trails in Holland MI with proceeds supporting the Egress Endurance Project.
10K trail race at Lexington Lake in DeSoto, KS organized by Team Sparkle with $50 registration and $5 donated to Urban Trail Co.
Experience the trails of Cheyenne Mountain State Park with three race distances ranging from a 5K walk to a 25K mountain challenge. This chip timed fundraiser supports park conservation through scenic and high elevation courses.
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