Trail Running Calendar United States 2026-2027

A downtown Ruidoso trail race on August 22, 2026 with multiple distances, finisher medals and awards, proceeds supporting All-Season Adaptive Sports, and a same-day Trail Running Film Fest and post-race gathering.

Habanero Hundred is an August looped trail event at 7IL Ranch near Cat Spring, Texas, offering distances from 10K to 135 miles and relay options. The course uses a 10 km loop with aid stations, pacing for 100M and 100K, and finisher awards.

Multi-hour looped trail challenges at Blackhawk Ski Club in Middleton, WI, with individual and team relay options, plus a 1.7 mile fun run that highlights the course features and terrain.

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.

A community road race in Elburn, IL on August 22, 2026 with 1-mile, 4-mile and 7-mile courses that cross the Union Pacific West rail line. The event benefits the Elburn Parks Commission and guarantees a racerback or tank if registered by Au..

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.

A trail event at Briar Patch Hunting property featuring a 20K made from repeated 5K loops, relay and individual divisions, and Beer Mile races. Beer or chocolate milk is offered before laps and beer is available to those 21 and older.

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.

Trail races in Arrowhead, Colorado on August 22, 2026 include a 13.3 mile half marathon with 2,844 ft of climbing and a mostly downhill 5.6K. Courses run mostly on single track and finish at Arrowhead Village with awards and post race food.

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.