Leadville
Trail Running Calendar near Leadville 2026-2027
Explore the top trail runs near Leadville for 2026-2027! We've gathered 19 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A 5k trail run starting at 11,000 feet in Center Village Copper Mountain on August 29, 2026, presented by Mammut as part of the Union Peak Festival.
September 2026
The Cirque Series at Arapahoe Basin on Sept 5, 2026 is a 9.4 miles mountain trail race with 2,211 ft of ascent on approved White River National Forest trails. The field is capped at 600 runners and includes a branded hat, bib and medal.
Trail Sisters Women's Half Marathon and 10K in Buena Vista, Colorado, feature trail courses through sagebrush and ponderosa pines with views of the Collegiate Peaks, and offer both group and solo participation options.
Experience desert style single track and forest roads with views of the Collegiate Peaks in Buena Vista. Choose between 50k or 30k distances as part of the multi sport 14er Fest.
A half marathon from Fanny Hill in Snowmass along the Government Trail through aspen groves to Koch Lumber Park in downtown Aspen.
Breckenridge Oktoberfest runs Sept 25 to 27 2026 on Main Street with collectible steins, live music, stein hoisting, a Kid Zone and a Saturday Oktoberfest 5K.
A fall trail event in Buena Vista, Colorado on September 27, 2026 offering a 14K trail race with over 500 feet of elevation gain and a 5K along the Arkansas River. Both races start and finish at Vendor Village near the Eddyline Beer Garden.
October 2026
Halloween themed, dog-friendly 5.6K run and 1 mile walk at Koch Park with costume prizes, timed results with cash awards, and proceeds benefiting the Aspen animal shelter.
November 2026
A family friendly Thanksgiving 5K in Buena Vista with mostly flat, stroller friendly trails and views of the Collegiate Peaks and the Arkansas River.
December 2026
Nighttime uphill race on Aspen Mountain with a 3,267 foot ascent, fundraising for organ, eye, and tissue donation, plus dinner, music, and awards.
May 2027
A trail race in Buena Vista on May 30, 2027 offering marathon, half-marathon and 9k distances at the South Main Town Square. The event coincides with CKS Paddlefest and donates to several local nonprofit organizations.
June 2027
A three day mountain festival in Alma Colorado at 10,600 feet featuring mountain bike races, trail runs, an off road duathlon, kids events and camping.
July 2027
High altitude trail races in Como and Grant, Colorado on July 9 and 10 2027, offering multiple distances including a point to point 100k and a 100 mile with qualifying rules.
Three day stage race offering Half Pint and Full Pint options July 26 to 28 2027 across three stages with published race guide and support services.
A single 200 mile loop around Summit County, Colorado with about 40,000 ft of climb, high alpine sections, live GPS tracking and a 109 hour cutoff.
August 2027