Trail Running Calendar United States 2026-2027

A backyard ultra on a 4.167 mile loop at Winona State Forest near Mannsville NY. Runners must complete each loop within an hour and return to the start; the last runner remaining wins.

A trail race in Oak Mountain State Park offering 10- and 20-mile options, mandatory water carry, on-course aid at mile 3.75 and a water stop at mile 7.5, and race shirts for registrants by July 26.

A 6 hour timed ultra and a 4.2 mile memorial run at Jug End State Reservation in Egremont MA on August 22, 2026. The loop covers woods and orchards with 830 feet elevation per lap and benefits Louison House and Dana Farber.

A technical mountain race in the San Juan Mountains above Telluride, Colorado, with multiple long courses and sections above 13,000 ft. Rocky, steep and exposed terrain requires prior mountain running experience.

Complete ten 5k runs every two and a half hours in this 24 hour challenge in Brandon. Enjoy hot meals and community activities between laps while striving to earn a custom finisher coffin.

A 5k mud run in Oak Harbor, Ohio with 20+ obstacles and two difficulty lines on many obstacles. Registration includes a T-shirt, wristband, and medal, and 10% of proceeds will go to Ronald McDonald House Charities.

Run the Rails in Elburn, Illinois on August 22, 2026 features a 1-mile fun run plus 4- and 7-mile courses that start and finish at Prairie Park. The routes cross the Union Pacific West rail line and benefit the Elburn Parks Commission.

A high-elevation trail run at Pajarito Mountain near Los Alamos, NM, with a route just under 10K that climbs to above 10,200 feet and about 1,350 feet of gain. The marked course includes a summit aid station and allows hikers.

A chip timed 5K trail run at Salamonie Lake with wooded, gently rolling trails, a participant pancake breakfast, and fresh sweet corn for sale. Proceeds support Friends of the Upper Wabash Interpretive Services.

Experience a unique trail race in Hampstead featuring a 20k relay and mile challenges. Runners can tackle wooded loops individually or in teams with optional time deductions for beverage consumption at each lap.

Trail races of 5K and 12K take place in the Fort Boise Park Military Reserve Trail System in Boise, Idaho. Proceeds benefit the Bogus Basin Nordic Team and the 12K includes cash prizes plus a post race raffle.

Powder Keg at Carter Park in Kings Mills, Ohio on August 22, 2026 features a roughly 3.5 mile trail loop along the Little Miami River with an old road, an old dam, and a stair climb. Online registration only, fee $23.50.

Test your endurance at this unique trail race in Tully where the coin toss determines your path. Complete as many loops as possible in three hours while alternating directions to stay on your toes.

A mountain trail half marathon and a mostly downhill 5.6K in Arrowhead on August 22, 2026, featuring single-track terrain, a 9,560 ft summit, aid stations on the half, and age-group awards.

A free one-day community festival in Park City featuring a social 4 or 6.5 mile group run, an expo with brand booths, food and a raffle. The event is cupless and hosted at Rendezvous Run with local partners and sponsors.

A trail event at Monte Sano State Park in Huntsville offering 10K and half marathon distances as part of the Wild Thangs Trail Series. The race includes aid stations, a cupless policy, finisher awards, and a 400-runner cap.

Trail races of 10K, half marathon and 30K through Henry Cowell Redwoods State Park with single track, sand ridge and river crossings. Aid stations are spaced every five to six miles and the event is cupless.

A day of looped trail events at Comlara near Hudson, IL, with timed options from one hour to twelve hours, a relay race, and an open course option. Runners complete roughly four mile loops and must return each hour to continue.

A new trail event in the Uinta Mountains near Kamas, UT featuring a 13 mile loop run once or twice, high-elevation terrain, on-course aid stations, and required Mirror Lake Highway passes for vehicle parking.

A map navigation event in Fillmore and Japantown where solo runners or teams of up to five use a 1:7500 custom map to find checkpoints on 5K or 10K courses, then enjoy snacks and socializing at the finish.