Brighton
Trail Running Calendar near Brighton 2026-2027
Explore the top trail runs near Brighton 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.
October 2026
A traditional Backyard Ultra at Luvin Arms Animal Sanctuary on October 24-25, 2026 with hourly 4.167 mile loops, on-site aid, camping, and proceeds supporting the sanctuary.
An approximately 18 mile trail across Boulder's five peaks with about 5,000 ft of climbing on October 24, 2026; limited to 100 participants with a $25 fee donated to recovery.
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.
November 2026
Trail races in Louisville, Colorado on November 14, 2026 offering 13.1 miles, 10K and 5K out-and-back courses on dirt trails with aid stations and drop bag service.
A self-supported 50K in Golden, Colorado with four summit loops from Parfet Park, minimal course markings, and a single DIY aid station.
December 2026
Holiday trail runs in Louisville CO with 5k, 10k, a new half marathon, expo pickup, giveaways, family activities, and a visit from Santa.
February 2027
A winter gravel bike rally and trail run in Lyons, Colorado offering multiple run and ride distances, mixed terrain courses, and a public finish-line party with food and music.
June 2027
August 2027
Annual four mile charity run in Eldorado Springs with a scenic out and back course, post-run food and prizes, supporting the Colorado Cancer Foundation.
Trail races around Standley Lake in Westminster, Colorado offering five dirt-course distances with aid stations, drop bag access and live split tracking.
September 2027
All-Out Fall Fest on September 18, 2027 at Standley Lake in Westminster CO offers in-person and virtual Half Marathon, 10K, and 5K and benefits BookGive.