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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
Trail run on August 12, 2026 at Carter Park in Breckenridge offering short and long course entries with adult youth and non binary categories.
A memorial 5K on August 12, 2026 at the Inkom Last Man Standing Trail in Inkom, Idaho, run as three loops on a dirt single-track course supporting the family.
An approximately 203 mile out-and-back road run from Walnut Beach to Wellsville with a six day cutoff, limited official support, and an optional 100 mile challenge.
A 5K trail run on the Flag Rock Area Trails in Norton held as part of the High Knob Outdoor Fest. Entry fees support the festival, awards go to the top three men and women, and all participants receive a 2026 festival T shirt.
An evening 3.6 mile trail run through Forest Park in Queens that visits 543 acres of wooded trails with rolling hills. After the run a festival area has music, vendors, food trucks and awards with participant tees provided.
Two short races at Boettler Park on August 13, 2026 organized by Summit Athletic Running Club. The 2 Mile is open to high school, middle school and open runners; awards and ribbons follow the races.
Bivo's second annual Summer Bash takes place August 13 at Cochran's Ski Area in Richmond, VT, featuring a trail run, MTB and gravel rides plus a Vermont Youth Cycles MTB ride for younger riders.
A 200 mile point to point trail race around Mount St. Helens with 13 aid stations and six sleep stations, organized by Destination Trail, Aug 14–18, 2026.
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 near Waterville Valley offering 108 mile, 58 mile and 20 mile courses across the White Mountain National Forest with significant elevation gain.
Thanks Sandy in Sheboygan, WI is a 9 mile trail run at Kohler-Andrae State Park featuring beach shoreline, trails, a boardwalk and post-race snacks.
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.
Overnight time-based trail event on Casper Mountain with 4 hour and 12 hour solo options plus a 12 hour four person relay, held Aug 14 to 15, 2026.
A Last Man Standing race in Inkom, ID on Aug 14, 2026 with repeated 1.1 mile loops featuring 240 ft of elevation gain per loop 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.
A community run/walk in Brillion honoring Mike Ariens, featuring 10K, 5K and a Kids 1K on trails and downtown routes, with finish-line ice cream, commemorative bucket hats, medals, and shuttle service between venues.
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.
Two-day Spartan Trifecta at Dillingham Ranch Oahu with Sprint, Super, Beast and Ultra races, kids events, and an obstacle workshop.
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