Trail Running Calendar United States 2026-2027

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.

A charity running event at Green Lakes State Park on September 20, 2026 with 8K and 5K races, a free kids fun run, a 5K lake trail route, and a 2 Mile trail walk, plus shirts, awards, aid stations, and free ice cream.

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 fun run at Reclaimed Rails Brewing Company in Bondurant with running, walking, or jogging and a post-run celebration, presented by the Iowa Brewery Running Series.

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.

A day of youth and adult cross country races in Aurora, Colorado on September 20, 2026, featuring grass courses with small undulations, a creek crossing, and bale jumps; distances run from 2k youth races up to a 5k 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 one lap up and down mountain race in Waterville Valley, New Hampshire on September 20, 2026, part of the USATF-New England Mountain Racing Circuit. The course uses grassy ski slopes and gravel service roads and includes three aid stations..

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

A fall trail race at Merck Forest and Farmland Center featuring an approximately 8.5 mile loop with about 1,800 feet of climbing and two aid stations. A separate 0.75 mile kids loop circles the farm and allows parent participation.

A self supported six stage footrace across the high desert from the Grand Canyon to Kanab, covering 171 miles over seven days. The course spans about 5,000 to nearly 8,700 feet and now includes a supported category.

A women only 5K obstacle mud run at Carter & Stevens Farm in Barre, MA on September 20, 2026. The course has 18+ obstacles, welcomes participants ages seven and up, and emphasizes teamwork over competition.

A timed charity tower climb at Empire State Plaza in Albany that reaches the 42nd floor with 809 steps. Water stations, bailout floors and medics are provided; registered participants receive a t shirt and finisher's medal.

A family friendly 5K run in San Francisco with a scenic course from Mountain Lake Park to the USS San Francisco Memorial and post-race festivities.

Multi distance running event at Hell's Gate State Park on September 24 2026 with races from 5K to 50K and no time limits.

A 100 mile point to point ultramarathon from Logan Utah to Bear Lake on September 25, 2026, serving as a qualifier for Hardrock, Western States and UTMB.