Trail Running Calendar United States 2026-2027

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 climbing across technical, high elevation trails. Entrants must meet a volunteer service requirement, carry a provided SPOT tracker, and winners face drug testing.

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 complete repeated 4 miles 880 feet loops, one hour each, until only one runner completes an extra loop. The field is limited to 100 and limited aid is provided at start and finish.

A weekend of gravel and road running in Lexington, Nebraska, offering a roughly 35-mile out-and-back ultra plus 10K and 5K options, with spaced aid stations, a self-supported ultra policy, and required headlamps and reflective gear.

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 in Forest Park Queens run as 12 laps of a 2.5 mile Orange Trail loop, each lap adding about 300 feet of climb and with aid stations after every circuit. The event combines a grassroots race atmosphere with 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 on August 29, 2026. The 15K covers 9.3 Miles, has a $45 entry fee, offers awards for overall winners, and includes a finisher medal for all participants.

Trail races at Summit Bechtel Reserve in Oak Hill, WV include a 10K and half marathon on winding, technical summer trails. The event is part of a Spartan OCR festival weekend and uses gun time for results.

A 10 km race at Power Dam Recreation Area in Perkinsville, VT on August 30, 2026, part of the Western NH Trail Running Series. Online registration closes August 28, 2026; youth entries are free and age-based fees apply.

Trail marathon and half marathon on scenic Kennedy State Forest routes with age and gender based staggered head starts, steep hills, aid stations every few miles, and a cupless hydration policy.

A mountain fundraiser in Stowe on August 30, 2026, featuring a 4.3 mile climb to Mt Mansfield for runners, hikers, and cyclists, plus a kids run, team options, donations, and event merchandise supporting the Catamount Trail Association.

A community running event at Albemarle CiderWorks on August 30, 2026 offering 5K and 10K courses plus virtual entries. The course is listed as new for 2025 and cider will be available after the race.

The inaugural Apple City 5k at Pinto Lake County Park in Watsonville on 30 August 2026 offers a 5k on gentle, scenic trails and a kids 1k around the soccer fields. Half the event funds support the Pajaro Valley Education Foundation.

Trail races at Five Fields Farm in Bridgton ME on August 30 2026 offering a three lap 50K and a rugged Bald Pate 10k. Courses run through Bald Pate and Holt Pond Preserves with aid stations and a finish at the apple orchard.

Timed loop trails on Wachusett Mountain with 7, 14, 21, and 28 mile options over ski slopes and single-track. Participants have 10 hours to finish, with weighted vest options and marked courses; finishers receive a shirt and patch.

Muddy Princess Charlotte is a women only 5K obstacle mud run at Porter Farms on August 30, 2026, featuring 18 plus obstacles, on course support, volunteer roles with benefits, and a partnership with the National Breast Cancer Foundation.