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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 3961 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!

January 2027
Multi distance track ultra at Ansin Sports Complex in Miramar FL offering timed 6 12 24 and 48 hour events on a USATF sanctioned, record eligible course.
A flat, looped ultramarathon on Jekyll Island with a 34 hour time limit and distances from 25K to 100 miles; the event runs on smooth trails under the stars and emphasizes community support and a no DNF policy.
A 24 hour trail race in Perris, CA on January 29, 2027 featuring a 7 mile loop with 1,631 ft of climb and both individual and four person team options.
A mixed-surface running event at Coyote Hills Regional Park offering a half marathon, 10K, and 5K with updated courses, GPX files, and stocked aid stations.
Trail distances from 12K to 50 miles through Oracle State Park on rolling singletrack, presented by C.O.D. Ranch, cupless event.
Forgotten Florida is a trail running event in Christmas, FL on January 30 and 31, 2027 with 100, 50, 15 and 8 mile courses through seldom used state forest trails.
Moab trail event on January 30, 2027 offering 9K, half marathon, 50K and 50 mile courses along Arches National Park with varied terrain and cupless aid stations.
A loop-course event in Boulder City, NV offering 100 miles, 50 miles and a half marathon on a 12.5 mile loop with substantial elevation gain and frequent aid access.
Winter cross country in Pasco on January 30, 2027 offering a 2.5 mile run/walk and a 5 mile race on woodchip and dirt trails, team entries welcome.
Conquer a winter obstacle course in Lake Geneva with distances ranging from 5K to 20K plus a dedicated kids race and a festive basecamp with fire pits.
Winter trail event at Hale Education in Westwood with a 30 hour ultra and a 15 mile looped course, marked trails, cupless aid stations, and required cold weather gear.
An open-ended backyard ultra at Pleasant Ridge Camp and Retreat Center where runners complete roughly 4.1 mile laps each hour until one runner remains.
Interlaken Icicle Dash at Interlaken Park in Seattle on January 30, 2027 offers 5k and 10k trail races as the final event of the 2026/27 Winter Trail Series. The course uses a 2.5 km loop on paved boulevard and dirt trails.
A supported urban 50K and half marathon in Biloxi and Ocean Springs featuring beachfront sections, GPX course files, and multiple aid stations.
A 5x5 trail challenge at Magnolia Hill Ranch where runners complete a 5K every hour for five hours on fast pinewood trails by a lake.
Multiple trail distances from 30K to 100K at Malibu Creek State Park in the Santa Monica Mountains; clearly marked singletrack and fire road courses, runners must carry their own hydration.
An endurance loop race at McDowell Mountain Regional Park offering 3 hour, 6 hour or 10 hour 42 minute formats for solo runners and teams of two to four.
Three trail races in San Angelo from January 16 to February 20, 2027, with 5K, 10K, 12K and 15K options and series awards based on total time.
An endurance trail event in Watertown TN on a rugged five mile loop offering 12, 24 and 48 hour solo and relay formats plus a rucking division.
An 8K early season trail run at Lakeside Park in Piedmont, SC with beginner friendly singletrack, two aid stations, hot cocoa at the finish, and finisher medals.
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