Trail Running Calendar United States 2026-2027

A trail event in early May at Saint John's Abbey Arboretum with 10 mile loops over varied terrain, offering 10 mile, 20 mile, and 50 kilometer options and two aid stations per loop.

Trail races at Addison Oaks County Park on May 2, 2027 include a 13.1 mile half marathon linking Addison Oaks and Bald Mountain and a 5K. The event is capped at 300 participants and includes a shirt, medal and post race food.

A multi day trail event in Wausau, WI on May 7 to 9, 2027 featuring a 4.167 mile loop used for a Limitless last runner standing race plus one or two loop Solo and Double options. A free kids race is scheduled on Saturday.

Trail Zion is a team trail relay at Zion Ponderosa Ranch near Zion National Park featuring singletrack and jeep trails with views of Checkerboard Mesa. The venue offers a village with a pool, hot tubs, showers and multiple lodging options.

The Friends of Yellow River State Forest Trail Run will take place in Harpers Ferry from Friday 7 May 2027 to Saturday 8 May 2027. You can run between 5 and 21 kilometers.

The Hellbender 100 will take place in Old Fort on Friday 7 May 2027. You can run 100 miles.

A self-supported marathon on May 8, 2027 in San Diego at Canyonside Park Driveway, organized as a memorial by Best Runner Leaves No Tracks. The counter-clockwise course passes Torrey Pine North with restroom and water access; no official ai..

Trail marathon and 10 mile on the Sag Valley Trail at Cap Sauers Nature Preserve in Palos Hills, IL, with wide horsetrail, notable elevation gain, and staffed aid stations along the routes.

A women focused trail running event at Cheyenne Mountain State Park on May 8, 2027 offering distances from 4 mile to 50K across limestone, singletrack and ridgelines, with cupless aid stations and race packet pickup the day before.

A timed half marathon through eight Napa Valley wine estates finishing in Yountville. The event includes a finish line Wine Village with live music and complimentary wine tastings.

Experience the beauty of West Virginia at this timed endurance race featuring a 5.25 mile loop with rocky climbs and scenic waterfalls. Choose between 6 or 12 hour individual runs and new relay options for teams.

Trail races near Fort Collins offering 25 and 50 mile options on mostly singletrack through Lory State Park and Horsetooth Mountain Park, featuring about 5,500 ft or 11,000 ft of vertical gain, staffed aid stations, and marked trails.

A multi-distance event in Lewes, Delaware with 5K, 10K and half marathon options plus race walk and heavy march categories. The weekend includes an educational exhibit, vendors and live music while supporting wounded warriors and homeless v..

A community trail run and hike on May 8, 2027 at the Point Arena and Stornetta Lands, co-hosted by ACORN and Pacific Community Charter School. Proceeds support the Students Protecting the Coast environmental education program.

Trail To Recovery 5K and 1 Mile run/walk in Norman, OK supports local recovery court programs and mental health services. The trail course runs through Ruby Grant Park and includes awards and finisher medals for participants.

Camp Mountain Laurel offers a family color run plus a 5K trail run and 5K trail walk at Hamden/North Haven YMCA and New Haven YMCA Youth Center on May 8, 2027; registration opens Feb 19 and first 100 pre-registrants receive a giveaway.

Mud Factor Medford is a 5K obstacle run on May 8 2027 at Moto541 in Central Point OR, with Kidz Family and Adult waves. Participants must bring a signed waiver and adults a photo ID; spectators have a cash fee.

A trail running event on the Wapack Trail in Ashburnham Massachusetts with 21.5 mile, 43 mile, and 50 mile options across rocky, technical terrain with aid stations, drop bag support, and a manual timing system.

The Trillium Trail Run will take place in Bainbridge Island on Saturday 8 May 2027. You can run between 5 and 10 kilometers.

An obstacle mud run at Montvale featuring a 5K and a Fun Run for children; the course has over twenty obstacles, a lake dip, vendors and music, and proceeds support Montvale's therapeutic programs.