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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 3943 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!

May 2027
A multi-route trail event on Tiger Mountain with three summit loops, offering a 50k option plus The Ascent, Big Cat, and The Ambush over a May weekend in Issaquah.
Trail running festival in Traverse City, MI featuring races and relays from 5K to 100K on trails through the Pere Marquette Forest with onsite post-race amenities.
Self supported marathon in San Diego on May 8, 2027, run on an unmarked counter clockwise course with restrooms at Torrey Pine North around mile 16.
Trail marathon and 10 mile on Sag Valley Trail through Cap Sauers Nature Preserve with wide horse trail, multiple aid stations, and notable elevation.
A women focused trail running event at Cheyenne Mountain State Park on May 8, 2027 offering distances from 4 mile to 50K across limestone, singletrack and ridgelines, with cupless aid stations and race packet pickup the day before.
Scenic timed half marathon through Napa vineyards from Quintessa Winery to Yountville, featuring winery aid stations, a Finish Line Wine Village with tastings, shuttle service and a finisher medal.
Timed 6 and 12 hour trail events at Valley Falls State Park featuring mixed terrain, relay options, aid stations, on-course mementos, and a charity beneficiary.
Trail races near Fort Collins offering 25 miles (≈5,500 ft gain) and 50 miles (≈11,000 ft gain) on mostly singletrack with staffed aid stations.
A multi-distance event in Lewes, Delaware with 5K, 10K and half marathon options plus race walk and heavy march categories. The weekend includes an educational exhibit, vendors and live music while supporting wounded warriors and homeless veterans.
A community trail run and hike on May 8, 2027 at the Point Arena and Stornetta Lands, co-hosted by ACORN and Pacific Community Charter School. Proceeds support the Students Protecting the Coast environmental education program.
Trail To Recovery 5K and 1 Mile run/walk in Norman, OK supports local recovery court programs and mental health services. The trail course runs through Ruby Grant Park and includes awards and finisher medals for participants.
A 13.1-mile course around Bass Lake in the Sierra National Forest, combining fire roads, a long paved downhill, lakeside miles, five cup-free aid stations, and a Recreation Point finish.
A Seriously Fun 5K obstacle run at Moto541 in Central Point, Oregon on May 8, 2027, open to all ages with required signed waivers and a spectator festival option.
Trail ultramarathons on the Wapack Trail in Ashburnham, MA with 21.5, 43, and 50 mile options over rocky, technical terrain and significant elevation gain.
Scenic 10K, 5K and kids 1-mile runs from Battle Point Park along the Forest to Sky Trail on Bainbridge Island with proceeds supporting local trail development.
An obstacle mud run at Montvale Springs with a 5K course and a family Fun Run, raising funds for Montvale’s therapeutic programs.
Trail races at Crystal Cove State Park on May 8, 2027 offering 50K, 25K and 5K courses with ocean views; proceeds support John Wayne Cancer Foundation.
Stairs for Strides is a Wheeling event supporting NAMI Greater Wheeling, featuring a 5K with a 350 stair climb and a family friendly 1 mile with no stairs. A food truck festival with over 20 vendors and mental health resources accompanies the event.
A chip-timed 5k at Colterris Winery in Palisade, Colorado, with a two-lap cross country course, race swag including a collapsible wine glass and finisher medal, and a charity partnership with RiversEdge West.
A USATF certified marathon on the paved Lake Wobegon Trail through Stearns County, Minnesota, running from Holdingford to St. Joseph and passing Albany and Avon.
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