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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 3868 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
A 200 mile point to point endurance run across Mount St. Helens and the Cascade Mountains with multiple aid and sleep stations.
A 20 miles long single track trail race along Mount St. Helens' southwestern side, starting at Marble Mountain Sno Park, with lava fields, stream crossings and old growth forest.
Multi distance mountain trail event in the White Mountain National Forest around Waterville Valley with 100 mile, 50 mile and 20 mile courses and significant elevation gain.
A 9 mile trail run at Kohler Andrae State Park in Sheboygan with beach and cordwalk sections, one aid station, finishers awards, and an option to donate to the park.
Trail weekend in Marquette on August 14-15, 2026 featuring 50K, 50 Mile and 1 Mile options, limited fields, cupless aid stations, and community training runs.
An overnight time based trail event on Casper Mountain with 4 hour and 12 hour solo options and a 12 hour four person relay.
A Last Man Standing race in Inkom, Idaho on a 1.1 mile loop with 240 feet of elevation gain per loop and repeated 20 minute laps until one runner remains.
A mountain 100 mile ultramarathon near Durango Colorado covering about 104 miles and 19,000 ft of climbing, on high alpine trails with required safety gear and satellite tracking.
An evening 3.1 mile trail run in Houston, MS on August 14, 2026 that raises funds for HHS Basketball and includes post-race food trucks and a DJ.
A non competitive two mile run in Window Rock, Arizona on August 14, 2026, honoring the Navajo Code Talkers. Registration includes a performance shirt, sticker, post race snacks and a poster option.
A prayerful, non competitive 50 miles journey Aug 14 to 16 2026 from Yerington Paiute Tribe to Stewart Indian School, with a virtual 1 to 50 miles option Aug 8 to 16.
Aug 15 to 16, 2026 at Dillingham Ranch, Oahu : multi-distance Spartan obstacle weekend with Sprint, Super, Beast, Ultra, kids races and an obstacle workshop.
Timed loop endurance event in Lincoln Park Seattle with 3, 6, 12, and 18 hour options, kids Loopy Races, team competition, and a central festival style aid area.
A mid-August trail running weekend in Grandview, Tennessee with looped races from one hour to 24 hours, free tent camping and a glamping auction; proceeds support Flying Pigs Sanctuary.
Trail races at Rocky Branch Park in Belmont, NC offering 50K, 25K and 5K on a marked looped course with aid stations and a handmade pottery finisher medal.
Mt. Sneffels Half Marathon and 10K in Ridgway Colorado features mostly dirt county roads, finisher medals, awards and a kids fun run.
Weekend mountain trail races at Mt. Hood Meadows presented by Speedland, including a 50-mile route to 8,000 ft, shorter Sunday races and a kids race.
Trail races in Elkridge, MD offering 25K and 50K on rolling single track with river crossings, aid stations, and an onsite after party.
A trail running event in the Santa Monica Mountains offering 50k and 25k courses with fully stocked aid stations and race prizes.
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