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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‑day series of Arizona point to point trail races including a 250 mile route from Black Canyon City to Flagstaff and shorter distances to Sedona and Prescott.
A 150-hour timed ultra in Mack, Colorado with five unpaved routes per journey, crewed and uncrewed divisions, and GPX navigation required.
Trail 50K and half marathon in Sisters, Oregon on May 2, 2027, starting and finishing at Village Green Park with finisher medals and aid stations staffed by the Ridgeview High School XC team.
Trail races at Wildlife Prairie Park in Hanna City, Illinois with 5K and 10K loop courses on maintenance trails and single track. Day park admission is included and the event features awards, post race snacks, and volunteer opportunities.
An eight-kilometer trail run at Lakeside Park in Piedmont SC with soft natural trails, singletrack sections, post-race pancakes, free photos, and a custom finisher medal.
Flat out and back half marathon and 10K on the limestone Great Western Trail with a 25 plus year history and proceeds supporting local mental health charities.
A multi-distance trail race at F.D. Roosevelt State Park on May 2, 2027, with 50K, 25K, and 10K options, awards, race swag, and a post-race cookout.
Looped trail races in Saint John’s Abbey Arboretum offering 10 mile, 20 mile, and 50 km distances with two aid stations per loop and a cupless policy.
A May 2, 2027 trail event at Addison Oaks County Park featuring a half marathon, a 5K and a ruck option with shirts, medals, aid stations and post-race food.
Trail race at Greenwood Furnace State Park on May 2, 2027, featuring a technical figure eight course with half marathon and 12K options.
A family friendly 5K in Everson featuring a 3.18 miles course with river crossings, a farm loop through Broad Leaf Farm, mixed trail surfaces, and chip timing.
80s-themed running event in Tulsa offering half, quarter, 5K, 1-mile, kids dash and virtual options with a costume contest, chip timing, medals, shirts, and volunteer roles.
Multiple in-person and virtual race options at Marine Creek Lake in Fort Worth on 05/02/2027, from a Kids Dash to a 13.1 mile half marathon.
Timed trail racing on a slightly technical 2.0 mile single track loop at White Lake State Park with 6, 12 and 24 hour options and on-site aid and crew areas.
Trail ultramarathon at Riverside Farm in Pittsfield VT offering distances from 10 miles to 200 miles through Green Mountain terrain.
Low-key evening trail series in Forest Park with three five race seasons, 4 to 7 mile courses, standings for regular participants, and a post season awards party.
Loop based trail event in Sylvan Park May 7–9, 2027 offering Solo, Double and Limitless formats on a 4.167-mile loop.
A multi-day trail relay at Zion Ponderosa Ranch with a 124.8-mile course, mixed singletrack and jeep trails, village camping, pool and showers, and significant elevation gain.
Trail races at Yellow River State Forest on May 7–8, 2027 include 5K, 10K and half marathon options with timed results and age-group awards.
A 100 miler in Old Fort NC through the Black Mountains to Mt Mitchell, organized by RUN828 Foundation with a 39 hour cutoff and specific qualification and gear requirements.
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