Trail Running Calendar United States 2026-2027

A 10k trail run and hike through Tioga State Forest in Wellsboro, PA on August 1, 2026. Proceeds will be donated to the Chromosome 18 Registry and Research Society to support research into a rare genetic disorder.

Trail 5K, 10K and a half-mile kids run at Miller Plant Farm in York, PA, on mixed farm and wooded surfaces; overall and age-group prizes, produce samplers for 5K/10K entrants, and 100% of proceeds benefit the WellSpan York Cancer Patient He..

A backyard ultra at Ponderosa Ranch in Clancy, Montana: runners complete a 4.167-mile loop each hour until one person remains. The self-supported event uses marked and GPS courses, variable terrain, and on-site crew areas with limited servi..

Trail races at Shelby Farms Park near Cordova TN offering 5 mile and 10 mile options on the Tour de Wolf singletrack trails.

A rugged out-and-back mountain event in Crozet, VA with five repeats of a 2.9 mile climb, totaling about 29 miles and roughly 7,610 ft of elevation change.

A 12 km trail race in Hanover NH across Storrs Pond, Oak Hill and Trescott trail systems, featuring single-track, woods roads and cross-country trails.

A 5K Run and Walk on a private airfield runway in Malvern, Ohio. The course uses hard packed grass, is managed by Run to You Racing, and has registration April 1 to June 15 with a $25 fee.

Two Brothers Up and Down in Idaho Springs on August 1, 2026 features steep out and back courses on dirt and pavement with major elevation gain for 5k and 10k.

Trail races of 5K and 3K at Codorus State Park Marina organized by Delone Catholic High School's cross country team; early registration includes a T-shirt and goodie bag and proceeds support several local funds.

An obstacle and trail running event at Diamond Lake Resort in Owensboro, Kentucky, featuring 5K and 10K options, 28 obstacles, and youth races for ages 4 to 13. Proceeds benefit MentorKids Kentucky.

A multi-part event at the Athens YMCA on August 1, 2026 featuring a cross country 5K through the woods, a one-lap track Fun Run, and a Phantom Runner shirt option with on-site pickup.

A 12 hour solo or relay run and walk at Southeastway Park on August 1, 2026, with dirt or paved loops, finisher medal, tech shirt, awards and on-site refreshments.

Trail races at Seven Mile Creek County Park on August 1, 2026 offering 0.7k, 7k, and 7-mile courses, chip timing, and a post-race pancake party.

A two-mile beach run in Hermosa Beach, California on August 1, 2026, organized by the Mira Costa Track and Cross Country teams. Registration runs April 17 to August 1 and the $30 fee supports the team.

About 11 miles of trail in Danbury NC with rock scrambles, a one third mile river crossing, and aid stations, starting at the lake and finishing at Green Heron Ale House.

A loop-based trail event in Foristell, Missouri on August 1, 2026, where runners repeat a 3.1 mile (5K) loop each hour and may stop after any completed loop. Results combine times for all completed loops to determine rankings.

A one day obstacle race and wellness festival in Long Island City on August 1, 2026 featuring a one block mystery course with 20 obstacles plus workouts and wellness activities.

Run De Tour is the 2nd annual trail race with 20 km, 10 km and 5 km options on Kincaid Park and Hillside Trails in Anchorage on June 14 and August 1.

Community trail run in Omao, Kauai on August 1, 2026 that raises funds for Keala Foundation youth fitness and wellness programs.

A trail event at Camp Lake of the Woods in Swope Park on August 1, 2026 featuring a 5K walk, a 5K run and an approximately 11K rocky loop intended for experienced trail runners, with water stations, packet pickup and a postrace raffle.