Trail Running Calendar United States 2026-2027

Trail running and rucking event in Holland, MI on Aug 15, 2026 offering half marathon, 13.1 ruck, 10K and 10K ruck. All proceeds support the Egress Endurance Project and aid stations are supplied by Gazelle Sports.

About a 10K trail race at Lexington Lake in DeSoto, Kansas, part of a six race Tour de Trail series. Entries donate five dollars to Urban Trail Co, the event is cupless and participants must bring their own hydration.

Experience the trails of Cheyenne Mountain State Park with three race distances ranging from a 5K walk to a 25K mountain challenge. This chip timed fundraiser supports park conservation through scenic and high elevation courses.

Underdown Trail Races in Merrill, Wisconsin on August 15, 2026 offer backcountry singletrack running and mountain biking across distances from a half marathon to 111 miles. Courses are well marked, supported by aid stations, and proceeds su..

A community 5K and a kids 1 mile fun run at Token Springs Elementary on 08/15/2026. The mostly bike-path out and back course runs through The Reserve neighborhood and supports the Sun Prairie West Cross Country Team.

A scenic off-road 5K at White Barn Farm through conservation land with a midway water station and marshaled course. Proceeds support the farm and a donation to the local food pantry.

A trail 5K at Oak Mountain State Park on August 15, 2026, starting at the North Trailhead. The course features singletrack, rocky top-outs and technical downhills with about 1,100 feet of elevation change over 3.1 miles.

Test your endurance at Big Hill Trails with a 3 or 6 hour mountain bike race or trail run. Support child advocacy in South Dakota while navigating flowy single track loops through the scenic Black Hills National Forest.

A 5K chip-timed run and a 3K scavenger-hunt walk through St. Patrick's County Park featuring trail terrain, participant medallions, post-event refreshments, awards by age group, and proceeds that support park programs.

Westminster Trail Race at Standley Lake in Westminster, Colorado offers five dirt-trail distances from 5K to 50K with lake and Front Range views on out-and-back and Y routes.

A late summer trail event in the Sierra Prieta mountains near Prescott, AZ, featuring a 50K distance and presented by The Hike Shack and Saddles 100.

Experience a rolling cross country run through the forests and meadows of the Landis Arboretum. This sanctioned 5K race offers views of the Schoharie Valley and access to scenic trails and gardens.

Trail ultraraces at Vogel State Park offer 100 mile, 40 mile and 40 km options on a high elevation ridge course with multiple support points and a mix of trail and forest road terrain.

A looped trail event at Sunfish Lake that combines timed 2.6 mile laps with a bingo card mechanic. Runners choose a 3x3 or 4x4 card and draw after qualifying loops to try to complete bingo while logging time and distance.

A one mile uphill race at Snow Summit in Big Bear Lake with a 1,000 foot climb starting near 7,000 feet elevation. The event raises funds for Big Bear High School cross-country through the BBHS Bear Backers 501(c)(3).

A six hour trail endurance challenge in Johnson City TX where runners complete a 5K every hour and must finish each lap within the hour to continue. Finish all six laps to earn the OUTLAST medal and national leaderboard ranking.

Experience the trails of Redwood Regional Park in Oakland. Runners can choose from distances ranging from a 50 yard kids dash to a 50K ultramarathon through scenic ridge lines and redwood groves.

A night trail event at Fontainebleau State Park with 5 and 10 mile options. Runners must carry a headlamp, whistle, and personal hydration; one aid point at the start finish provides water for refilling.

Experience the scenic trails of Iron Mountain at the Lake Antoine Classic. Choose between running, walking, or cycling distances in this community event supporting the Special Olympics.

A 3.1 miles obstacle course through Thomas Jefferson’s Poplar Forest with elite, team, corporate and non-competitive waves. Entry fees support Poplar Forest education and elite competitors must complete all obstacles to qualify for prizes.