Trail Running Calendar United States 2026-2027

Multiple distances are held in Katy Texas on August 29 2026, including 5K, 10K and a half marathon. Courses use short out and back loops, there is a 3 hour 30 minute time limit, and registration is online only.

Spartan Stadion Philadelphia on August 29, 2026 uses an urban stadium course in South Philly with steep stairs, narrow concourses and 20 obstacles over 5 km. Kids races and spectator tickets are available.

A night trail run at Estero Llano Grande State Park with 5k, 10k and 10 mile looped courses, youth options, two aid stations, medals for all finishers and overall awards for top three male and female.

Run Like the Wind in Allenspark on August 29, 2026 features a 5K race, a 2K run/walk and a dog jog option. Proceeds benefit The Old Gallery and participating dogs are entered in an amateur dog show.

A 50 mile mountain ultramarathon in Ouray, Colorado with 23,582 feet of elevation gain, technical high‑altitude terrain, mandatory volunteer service or opt-out donation, live SPOT tracking, and drug-tested cash awards.

Endurance race on one of Cleveland's steepest hills where runners complete as many laps as possible within 1, 3, 6, or 12 hour limits. All registrations and donations go directly to cancer patients through the Nelson Family Foundation.

A backyard ultra at Oak Mountain State Park where runners attempt repeated 4.167 mile loops with about 500 feet of elevation change. The event is capped at 100 entrants and follows strict hourly start and course rules.

An inaugural roughly 35 mile out and back ultramarathon near Lexington, Nebraska, accompanied by 10K and 5K routes. The course mixes paved and gravel roads through Wiley Canyon, is largely self supported, and includes spaced aid stations fo..

A steep 4.75 mile up and down run, hike, or walk on San Anselmo's Bald Hill that finishes downtown with live music and a t shirt. The third annual event benefits local nonprofits and includes town endorsement.

An inclusive trail festival at Northfield Mountain on August 29, 2026 that centers queer and trans runners and allies. It offers a 20k prediction race, an untimed 5k fun run or hike, and a Kid's Run with community-focused prizes.

A 50K looped trail race in Forest Park, Queens on August 29, 2026. Runners complete twelve 2.5 mile laps on the Orange Trail with about 300 ft of climb per lap and an 8 hour cutoff.

A two hour loop challenge on the Oneonta High School cross country course where runners complete as many 1.35 mile loops as possible. Registration is free and donations at packet pickup support Oneonta High School Cross Country.

A trail race at Oakes Quarry Park in Fairborn, Ohio offering 5K, 10K and 15K courses through limestone cliffs and wooded trails. Finishers receive a medal and overall winners in each distance receive a special award.

A trail festival at Furnace Run Park with a 5K loop on mixed surfaces and a planned longer trail. Chip timing, awards by gun time, and proceeds benefit Friends of Shippensburg Community Parks.

A community-hosted trail event in Kotzebue, Alaska above the Arctic Circle, offering full and half marathon courses over dirt roads, beach, and trail. Registration opens April 29, 2026.

A continuous loop trail race at Half Day Forest Preserve offering 3.1 mile laps for 40 or 50 mile distances, with a 12 hour cutoff and fully stocked aid at each lap. Crew access and personal staging areas are provided.

Loop based trail event at Half Day Forest Preserve where runners repeat a 3.1 mile loop, stop after any loop with no penalty, and receive official timing for each completed loop for combined results.

River Rat Obstacle 5K and 1 Mile Fun Run raises funds for the Lexington Cross Country team at Lexington High School. Courses are mostly grass and trails and include optional obstacles such as hay bale hurdles, a tire maze and a slip n' slid..

A six hour trail challenge where runners complete a 5K each hour, finishers earn patches or a medal and race times feed a national leaderboard and prize competition.

A community cross country 2-mile at Cherokee Farm Cross Country Course in Knoxville on 08/29/2026, run on a fully grass course and open to all ages. Registration costs $30 and proceeds benefit Tennessee Endurance and the UT Running Club.