Westminster
Trail Running Calendar near Westminster 2026-2027
Explore the top trail runs near Westminster for 2026-2027! We've gathered 29 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
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.
A remembrance event in Longmont, CO on a flat 1.05 mile loop offering multiple races including a 100 mile option and finisher awards.
Community 5K, 1 mile fun run and a dog friendly 3.1 mile course on Second Creek Trail supporting Every Child Pediatrics in Commerce City on 09/19/2026.
October 2026
A multi-distance trail weekend at Bear Creek Lake Park offering 100K to 5K courses on mostly singletrack with aid stations, drop bags, pacer rules and live split tracking.
Trail races in Louisville CO with 5k, 10k, a new half marathon and a family Pretzel Mile plus an Oktoberfest post race festival.
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.
Fundraising run at Red Rocks Park and Amphitheatre on October 11, 2026, supporting 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.
A backyard ultra at Luvin Arms Animal Sanctuary on Oct 24–25, 2026 with hourly 4.167-mile loops on mostly flat dirt, grass, and gravel plus on-site race camp and cupless aid.
MonsterDASH Louisville on Oct 25, 2026 offers a new half marathon plus 5k, 10k and a kids mile with costume contests, expo, and themed runner perks.