Trail Running Calendar United States 2026-2027

Trail runs and ruck challenges on Riley Trails in Holland, MI on Aug 15, 2026 with multiple distances and aid stations every four miles. Proceeds support the Egress Endurance Project and packet pick up is at Benjamin's Hope.

A 10k trail race at Lexington Lake near DeSoto, KS, part of the Tour de Trail series. A portion of each entry supports Urban Trail Co; the event uses clock timing and is cupless so runners must carry 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 5K off-road trail run, walk, and hike at White Barn Farm through Wrentham conservation land. The event is part of the Farm to Trail 5K Series and raises funds to support local agriculture and food pantry donations.

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.

Time-based mountain bike and trail run event at Big Hill Trails supporting Northern Hills Area CASA, with 3- and 6-hour race options, team entries, aid stations, participant lunch, camping allowed, and cash prizes for breaking 6-hour bike r..

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.

A multi-distance trail event at Standley Lake in Westminster, Colorado featuring 50K, 35K, half marathon, 10K and 5K on packed dirt trails with aid stations, drop bag access, parking at Wayne Carle Middle School and lakeside views of the Fr..

A 50K trail run near Prescott, AZ that covers 31.5 miles and about 5,500 feet of climbing, passing Thumb Butte, Quartz Mountain and Wolverton. Aid stations are at miles 6.5, 15 and 23 and a 3 MPH cut off applies.

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 races at Vogel State Park with 100-mile, 40-mile, and 40 km options on the Duncan Ridge. The course uses multiple support points, has notable elevation gain, and the shortest distance avoids nighttime running.

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.

## Conquer the Wall is an annual uphill running event at Snow Summit near Big Bear Lake. The one mile course rises about 1000 feet from a 7000 foot start and supports Big Bear High School cross country.

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.