Trail Running Calendar United States 2026-2027

An eight-week trail series at Northshore Park in Flower Mound with weekly chip timed 5K and 10K races on marked singletrack, weekly podiums, and final series awards; registrations are final but transfers are accepted.

Six trail races across Summit County, Colorado, in summer 2026. Series registration includes long and short course options with adult, youth, and non binary categories and events at multiple Summit County trail heads.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

Multi-day elevation based endurance events at Mohawk Mountain in Connecticut, June 4 to 7, 2026. Solo, Trail Buddy and Trail Family formats cover timed events from a 12-hour 15-mile option up to 84-hour 152+ miles with large elevation gain.

An evening 5K around Lady Bird Lake and the Butler Trail in Austin with a Finish Line Party, event shirt, two complimentary margaritas, and proceeds supporting The Trail Conservancy.

Four week June series introducing runners to trails at Mendon Ponds Park, Powder Mills Park and other scenic locations. Sessions focus on guided runs, skill drills, warm ups, cool downs and gear and safety tips; participants receive trail s..

An evening trail series in Ogden with three 5k races in April, June, and September along the Bonneville Shoreline Trail. Series passes and individual entries are available and fields are limited to 75 runners per race.

A multi distance trail event on the Jericho Horse Trail in Francis Marion National Forest offering looped 16 mile and 18 mile courses and distances from 10k to 100 miles. Expect hot, humid swamp conditions, three aid stations, and primitive..

A Last Runner Standing ultrarun in Soldotna, Alaska on June 5, 2026, held at 538 Arena Ave #8200. Registration closes June 4 at 11:59 PM Alaska time.

Timed 24 hour, 12 hour and 6 hour trail events on a roughly 6 mile loop at the UAF West Ridge. Races end together and are followed by a post-race barbecue and an awards ceremony.

A weekend trail event in Morgan Monroe State Forest featuring a 100 km ultra and a 20 mile fun run, plus virtual and economy no swag options. The 100 km course is mostly single track with about 8,500 feet of climbing and a 20 hour cutoff.

Experience a mountain running event in Idaho featuring distances from 23 miles to a 100 mile ultra. Navigate technical trails with significant vertical gain while supporting environmental conservation and community inclusivity.

Explore the scenic woodlands of West Virginia with the Howlin’ Trails 5K and 10K at Wolf Creek. This trail event features a closed course, chip timing, and a lively post race atmosphere at Bridge Brew Works in Fayetteville.

Point to point trail ultramarathon along the New England Trail with 112 mile and 50 mile options through Connecticut. Entrants must donate to the Connecticut Forest and Park Association and arrange their own crew and navigation support.

A mountain trail event in Snowmass Village on June 5-6, 2026 offering a 6.6 mile Red Loop and timed 6 hour and 24 hour ultras, with campground hub, on-site amenities, and 2026 as the final year at Snowmass.

Experience a timed 5K trail run or walk through the scenic woods and fields of the Van Vleck Farm and Nature Sanctuary. Enjoy live music and food trucks at this annual community event in Woodbury.

Trail races in Washburn, ND with a 4 mile coulee course and a 1.5 mile kids run for ages 10 and under. The course features grass, gravel, logs and muddy sections, and awards are given by overall and age divisions.

A team trail relay in Snowmass Village on June 5-6, 2026 featuring mountain loops, camping at Ragnar Village, and team formats for four or eight runners. The course totals 120 miles with significant elevation gain and weekend on site amenit..

A small ultramarathon gathering at Sky Maple Farm in Hillsborough, NC, combining looped running with a Marathon Monk and a program of contemplative practices, evening meals, and teachings.

A weekend of obstacle races at Perfect North Slopes near Cincinnati, featuring Sprint, Super, Beast, Ultra and kids races across hilly, muddy terrain with onsite parking and a base-lodge festival area.