Trail Running Calendar United States 2026-2027

Experience the trails of Cuyahoga Valley National Park with a variety of distances for runners and hikers. This event supports the local Humane Society and features beautiful woodland scenery and wildflower meadows.

Explore the trails of Mansfield Hollow State Park at the Nipmuck South Trail Race. Choose between a scenic 15 mile out and back route or a new, challenging 5K course. Proceeds support local trail stewardship organizations in Connecticut.

The Tahoe 100K is a high-altitude ultramarathon through the Sierra Nevada. Runners face over 11,000 feet of climbing on singletrack trails, reaching nearly 10,000 feet above sea level. This 100-kilometer journey passes by the scenic Star La..

Experience the scenic Montana Idaho border with a half marathon or 10k starting at Lolo Pass. Enjoy gravel road courses through forests and meadows followed by a celebratory post race BBQ.

The Old Zoo Half Marathon offers a half marathon and a 12K on scenic, flat trails starting at the historic Old LA Zoo. Runners receive a unique elephant finisher medal and other amenities. Early registration is advised as space is limited.

A community 5K trail run, walk and hike in Eisenhower Park Milford on June 7, 2026 supporting the Milford Rotary and the Beth El Center. The course uses a high school cross country route with mostly flat sections and some rolling hills.

Join the 24th Dewey Beach Patrol 5k in Delaware for a series road race ending with a post-race party on the bay. This chip-timed event offers categories for both runners and competitive walkers.

Races through Garden of the Gods Park include a 10 mile road, 10K road and 10K trail, all finishing at Rock Ledge Ranch. The routes pass towering sandstone formations, include aid stations, and end with on-site post-race food and music.

A 5k run and 5k walk in Marienville on June 14, 2026, staged from the Bike/walk trailhead. T-shirts are guaranteed for signups by May 31, 2026 and the course is described as flat and fast.

A chip timed 5k run and walk at Mackinaw Valley Vineyard and Winery on June 14, 2026, featuring a two lap cross country course, race swag, and a pour of wine for eligible participants. The event benefits The Heller Center for Kids with Canc..

Experience the original adventure run at Mt Hood with a roughly 6 mile course through rugged terrain. Enjoy legendary camping near the start and finish at White River West Sno Park.

This 14th edition trail marathon in Jackson, Tennessee, is the second race in a five-day series. Runners complete seven loops on a leafy trail that gets hotter throughout the day, running the same course as the previous day's event but in r..

Experience a 5k obstacle mud run designed for women at Switchback MX in Butler. Support breast cancer awareness through a course focused on unity and empowerment in a fun environment.

Join the Treat Trot in Indianapolis for a variety of chip timed races and fun runs. Choose from 15k, 10k, 5k, and kids distances with custom medals and free photos included for all participants.

Experience a scenic 14K run over the dirt roads of Jeffersonville and Fletcher. Support local Vermont farmers while enjoying live music, fresh food, and community celebrations following the race.

The Asphalt Jackal Marathon returns for its 13th year at Pinson Mounds State Park. Runners will tackle a 2.9-mile paved loop nine times on a course that is half shaded and half in the sun. This event is the third race in a challenging five-..

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

This marathon takes place on a paved, 2.9-mile loop at Pinson Mounds State Park. It's the 13th edition and part of a five-marathon series over consecutive days. Runners complete nine laps, with half the course in sun and half in shade.

Experience summer trail running on the dirt paths of Sandy Bottom Nature Park. This three race series offers increasing distances from 5k to 5 miles to support local scholarship funds.

Join this weekly trail running series at the Catamount Outdoor Family Center featuring distances from 5k to 10k. There are special categories for children and water stations available on site for all runners.