Littleton
Trail Running Calendar near Littleton 2026-2027
Explore the top trail runs near Littleton for 2026-2027! We've gathered 28 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A community benefit trail event in Castle Rock with a 5K and a 1 Mile Walk raising funds for a family affected by spinal muscular atrophy.
Westminster Trail Races on August 15 2026 offers multiple trail distances around Standley Lake on packed dirt with lake and mountain views.
September 2026
Join the community for a 5K run or walk on a brand new dirt course at the North Arvada Middle School Athletic Complex. Support local high school racers before taking on this off road route yourself.
A load bearing endurance event at Staunton State Park on September 5, 2026. Routes range from 6.5 to 21.5 miles with loads from 10 to 40 lb and proceeds benefit the Special Forces Foundation.
The 4th annual Greenland Open Space Pack Burro Race in Larkspur, Colorado offers 8 Mile and 3 Mile pack burro divisions. Teams must register a burro partner, follow animal welfare rules, and the field is limited to 75 participants.
October 2026
A weekend of looped trail races at Bear Creek Lake Park near Lakewood CO offering 100K, 50 Mile, 50K, half marathon, 10K and 5K on mostly singletrack dirt.
Trail races on Philip S. Miller Park ridgelines include a family adventure run plus 5K, 10K, half marathon and 50K with chip timing and aid stations.
OUTLAST Denver is a six hour trail challenge where runners complete a 5K every hour, earn patches or a medal for laps, and can place on a national leaderboard.
Run the Rocks at Red Rocks Park in Morrison, CO offers a 5k and a 1.3-mile family course, raising funds for lung disease education, advocacy and research in Colorado.
Indian Creek Trail Runs in Sedalia, Colorado on October 17, 2026 offers multiple trail and ultra distances through montane forests, aspen groves, red rock formations and prairie vistas with city views from several viewpoints.