Trail Running Calendar United States 2026-2027

Three races at Lake of the Ozarks State Park include a 5.5 mile trail run, a 25K trail race, and a combined 32 mile run with 3 miles of paddling. Courses feature lake views, multiple aid stations, finisher awards, and park amenities.

Farm Park Challenge is a trail running event at the Agricultural History Farm Park in Derwood, Maryland on May 2, 2026. Options include a marathon, a 25K, and timed three hour six hour and ten hour challenges run as five mile laps.

Trail races at Greenland Open Space in Larkspur, Colorado offer 4 mile, 8 mile, 25K and 50K distances on dirt double-track trails with aid stations and championship designation for the 50K.

Niwot's Challenge is an invitation only, navigation focused ultradistance trial near Sedalia, Colorado, emphasizing off trail travel, limited aid, and self reliance across options from about 24 to 100 miles.

Experience the red rocks of Garden of the Gods Park in Colorado Springs during this traffic free event. Choose between road and trail options ranging from 5K to 9.5 miles with stunning views of Pikes Peak.

Trail ultraraces of 25K, 50K and 50 miles on gravel roads through the Flint Hills near Cassoday, KS. Out and back course with manned aid stations, a 15 hour cutoff for all distances, and race day packet pickup only.

Experience an iconic trail ultramarathon through the redwoods and coastal cliffs of the Marin Headlands. This challenging 62 mile course features 11,000 feet of gain and serves as a major race qualifier.

Join this scenic trail race at Withlacoochee River Park to support mental health awareness. Runners and walkers can choose between 10K, 5K, and 1-mile distances through shaded Florida landscapes.

Experience the beauty of Missouri state parks with trail races ranging from 5k to a full marathon. This cupless event features scenic bluff views and single track trails for runners and hikers alike.

An ultramarathon in Van Cortlandt Park featuring an initial flat lap plus ten cross country loops, stocked aid stations, drop bag access, and finisher awards including a medal, singlet, meal and post race beer.

Experience a unique run through the Metro Richmond Zoo with a choice of a 5k trail, a kids 1 mile run, or a 42 obstacle ninja challenge. All participants receive zoo admission for a day of wildlife conservation and adventure.

A muddy obstacle-course festival in Deansboro, New York offering 5 mile, 5K and kids runs plus live music and local brews. Proceeds support the Barden Adventure Scholarship and other charitable efforts.

Trail races at Great Seal State Park near Chillicothe OH on a 20 mile loop offer 100 mile, 100k, 20 mile and 5k options. The loop is mostly single track with about 3100 to 3200 feet of elevation gain per circuit and multiple aid stations.

Run a 5k under the stars at Hagan-Stone Park, guided by hundreds of LED tea lights and live bluegrass music. This night trail race includes a custom shirt, a commemorative mason jar, and two post-race cocktails or mocktails. A headlamp is r..

Test your stamina on a 3.2 mile trail loop in the Sangre de Cristo Mountains. Participants have 12 hours to run or ruck as many laps as possible with full aid station support and on site lodging.

Event Overview The Denfit Ultra is an ultramarathon event taking place on May 2-3, 2026 at the Buffalo Ski Center in Colden, New York. The event features two distances: the Denfit Ultra 50k and the Denfit Ultra 100k. Course Details Both rac..

Test your hill skills in this 4.45 mile time trial at Forest Park. Experience a steep out and back course on Firelane 1 followed by a live results viewing party at a local brewery.

Mud Factor returns to Myers Park in McKinney on May 2, 2026 with a 5K mud and obstacle run featuring Adult and KIDZ Family waves. Participants must bring a signed liability waiver and adults need photo ID; spectators pay $10.

Experience rolling hills and scenic wetlands at the Trail Mix Race in Rockford. With distances ranging from 6K to 50K, runners explore prairies and big woods landscapes in this premier western metro park.

Experience an obstacle course race inside the iconic Raymond James Stadium in Tampa Bay. Navigate a 5K course with 20 obstacles through bleachers and past the famous pirate ship for a unique athletic test.