Trail Running Calendar United States 2026-2027

A Trail 10K at Lexington Lake in DeSoto, KS organized by Team Sparkle. Part of a six-race Tour de Trail series with a portion of each entry donated to Urban Trail Co and cupless water aid on course.

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.

Trail running and mountain bike races at the Underdown Trail near Merrill, WI feature multiple distances on well marked singletrack with boardwalks, aid stations, awards, and a postrace gathering with music.

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 rugged 5K trail race at Oak Mountain State Park that climbs and descends about 1,100 feet over 3.1 miles on single-track trails including Blue Trail, Outback Highway, and Eagles Nest. Awards include King and Queen, and runners under 40 mi..

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 race near Prescott, Arizona on August 15, 2026, covering 31.5 miles with about 5,500 feet of climb and three aid stations. The course passes Thumb Butte, Quartz Mountain and Wolverton and uses a 3 MPH cutoff.

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 near Blairsville GA offering 100 mile, 40 mile and 40 km options on Duncan Ridge with substantial elevation gain, multiple support locations and volunteer credit toward future entries.

A backyard style bingo run around Sunfish Lake on repeated 2.85 mile loops. Runners draw bingo balls after laps finished within a 32 minute window; two card options change total distance and maximum loops.

## 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.

A remote roughly 20 mile ridge trail race near Bozeman, Montana, run by volunteers with a lottery limited field. The route is technical and exposed; aid stations are volunteer staffed and participants must carry a water vessel.