Trail Running Calendar United States 2026-2027

Experience a unique 5K run through a scenic valley and a lit cavern in Alabama. Enjoy mountain views and a subterranean turn around point with constant cool temperatures.

A one mile loop elimination challenge in Webster NY on September 20, 2026 where runners must meet shrinking time cutoffs each mile; finishers receive a medal and category pins, with cash prizes for top male and female.

A 5K trail run at Winding Trails in Farmington on the designated course around Walton Pond, with registration from February 20 to September 20 and a $35 fee; overall and age-group awards plus a prize for the first local finishers.

A 5K trail race at Loon Mountain on September 20, 2026, as part of the 51st NH Highland Games, with 800 ft of elevation gain across dirt trails, service roads and ski trails. Registration includes a race shirt and festival admission.

Experience the technical terrain of Cockaponsett State Forest with 4 and 9 mile trail races. Navigate hills and rocky paths in Chester to support PanCAN and the Blue Blazed Trail Race series.

Pair up for a three hour endurance relay on a two mile loop of trails and fields. Alternate laps with your partner to accumulate the maximum distance possible in this team based challenge.

A 5K untimed fun run at Reclaimed Rails Brewing Company in Bondurant on September 20, 2026, with an open course that highlights Lake Petocka. Registration includes a craft beverage and series swag, plus music, food trucks, and games.

A community 5K in Hillsborough, NH on September 20, 2026, organized by the Hillsboro Fire Department. The off-road course may be uneven and strollers are not recommended; registration runs March 25 to September 19 with a $30 fee.

A non-timed 2K and 5K trail run/walk at Case Creek Valley that welcomes leashed dogs and supports Rock Island County Animal Care & Control Shelter, with race bibs, optional T-shirts, finisher dog tags, and hydration stations.

Expo Park XC is an old school grass cross-country meet in Aurora, Colorado, featuring creek crossings, a wooden footbridge and bale jumps. Races range from about 1 km for young children to a 5 km open race.

A running event in Iroquois Park with an approximately 7.5 mile Lookout course and a 3.4 mile Short Loop option. Finishers receive medals and shirts are available by preorder with limited race day sales.

A traditional up and down mountain race in Waterville Valley, NH on September 20, 2026 covering about 7 miles with 3000 feet of ascent; youth entry is available and day of registration is offered.

The Arc'teryx Run Boston will take place in Milton on Sunday 20 September 2026. You can run 10 kilometers.

An 8.5 mile trail race at Merck Forest and Farmland Center in Rupert, VT featuring about 1,800 ft of climbing and two aid stations. A 0.75 mile kids loop circles the farm and all proceeds support Merck Forest and Farmland Center.

The Grand to Grand Ultra is a self supported stage footrace across the high desert from the Grand Canyon. The 13th edition covers 171 miles over six stages in seven days and now includes a supported category.

A day of the Northwest Series at Hell's Gate State Park in Lewiston, ID offering 5K, 10K, half marathon, marathon and 50K distances with listed entry fees and on-site merchandise.

A point to point 100 mile trail race from Logan to Bear Lake on September 25, 2026, passing through forested and mountain terrain. Entry used a lottery and requires a qualifying race result plus eight hours of service.

A multi-day trail running festival in Mammoth Lakes with races from a kids 1K to a 50K and a Dragon's Back ascent, plus festival programming, prize purses, timing, aid stations, and lodging discounts.

A series of Rocky Mountain 100 mile races built around the Bear 100 in Logan Utah. Runners must complete four races including the Bear and the series uses an informal tally of a runner's fastest four finishes.

A point to point ultra on Nebraska’s Cowboy Trail offering 200 mile and 100 mile options on a mostly crushed limestone, runnable and flat rail trail served by multiple stocked and unmanned aid stations.