Trail Running Calendar United States 2026-2027

A 25 kilometer trail race through the Edwin L. Smith Preserve in Kennebunkport, Maine on October 3, 2026. Proceeds support the Kennebunkport Conservation Trust and registration is limited to 100 entrants.

A trail running event in Middleville, MI on October 3, 2026, offering 10K, 25K and 50K looped courses on rolling single track with camping options and an included tech shirt or buff.

Experience a trail half marathon on San Bruno Mountain featuring 2,400 feet of elevation gain and stunning views. Enjoy a scenic route with 93 percent trail coverage followed by a post race meal and finishers medal.

A multi distance trail festival in Castle Rock featuring a family adventure run plus 5K, 10K, half marathon and 50K ultramarathon across Philip S. Miller Park and Ridgeline Open Space. Events include chip timing, finisher medals and aid sta..

Honor history at the Mogadishu Mile, a four person team obstacle course and one mile ruck run in Georgetown. Work together to complete 500 total reps and a weighted run without leaving any team member behind.

A Stroll in the Park in Canton, GA on October 3, 2026 features 8 hour and 12 hour endurance runs on an approximate one mile crushed gravel loop. The event includes one aid station, lap counting technology, parking, and completion awards.

A trail race in Dahlonega, Georgia on October 3, 2026 offering a 50K and a half marathon on three roughly 10 mile loops through waterfalls, stream crossings and rocky climbs with three aid stations and a 12 hour cut off.

A timed trail ultra in Cumberland RI offering 8 hour, 12 hour, and 34 hour options for individuals and teams up to four. The 4.2 mile loop mixes smooth trail and moderately technical rocky sections.

A trail running event at Rocky Branch Park with on-site and virtual 5K and 10K options; timing uses bib chips, participants receive a branded T-shirt and sticker, and proceeds support the Pancreatic Cancer Action Network.

A trail running event in Girdwood, Alaska on October 3, 2026 offering marathon, half marathon, juniors half, and a 5K across local trails. Five aid stations, a marathon cutoff at Crow Creek Road, and proceeds support the Girdwood Nordic Ski..

The 8th Annual WQMX 5Kay offers a 5K run and 1 mile walk across unpaved Rufener Hilltop Farms in Mogadore, Ohio, with medals by age group and proceeds supporting WQMX Bosom Buddies for free mammograms.

Trail-based five mile race and two mile fun walk at Camp Innabah in Spring City, PA on October 3, 2026. Proceeds support summer camping programs and scholarships, with a pancake breakfast and awards for overall and age groups.

The Camp 4 Coffee Cart to Cart Trail Race will take place in Crested Butte on Saturday 3 October 2026. You can run between 10 and 19 miles.

Run Forrest Run Endurance Fest at Tom Triplett Park in Pooler GA offers road and trail distances from a 1 mile fun run to a half marathon plus a Memorial Ruck. A portion of registrations supports the Effingham Navigators Group.

A fall trail event at Lapham Peak State Forest featuring timed 5K and 10K runs, accessible walk options, and a free 1K Smokey Bear run for children age 10 and under; participant shirts, awards, and post-event treats are included.

Trail Run at Indian Lake takes place on Oct 3, 2026 at Indian Lake County Park. The event is cup free, includes a free kids run with no registration, and features a post race party with live music and a raffle.

The John Holmes Trail Run takes place at Croom Park and Withlacoochee State Forest on October 3, 2026, offering 50K, 16 mile and 9 mile options. The field is limited to 250 runners and this is the event's 34th running.

A 12 hour trail event at Prince William Forest Park near Triangle, VA, run on a 6.5 mile figure eight loop with 650 feet of elevation gain per loop. Options include a 30 km race, a 12 hour entry, and a 2 person relay.

A six hour timed trail event at Brady's Run Park on a 2.1 mile loop featuring steep opening climbs, ridgeline single track and technical switchback descents. Open to solo runners and two person relay teams with awards for top finishers.

A trail event at Dorothy Pecaut Nature Center in Sioux City on October 3, 2026. It features a 5 Mile trail run, hike or ruck plus a kids 1k, marked trails, notable elevation gain, and age group awards.