Trail Running in Summit County

Group trail runs and fun runs on the valley’s singletrack and foothills.

3 of 3
Trail Run⚠ Needs verification

Summit Trail Running Series

Summit Trail Running Series

Five-race series · Wednesday evenings · summer

Rotating Summit County trailheads

Beginner-friendlyDog-friendlyPaidSummer

The 23rd-annual cup-free trail series — short and long courses ages 10-plus, each race followed by a post-race party. Venues rotate (French Gulch, Baker’s Tank, Carter Park and more); confirm 2026 dates on the Town of Breckenridge page.

Trail Run⚠ Needs verification

Club Runs & Socials

Breckenridge CO Run Club

Member runs & socials — see schedule · year-round

Rotating Summit County trails & roads

Beginner-friendlyNo-dropPaid

A sustainable year-round adult running community welcoming all abilities and paces; the run/events calendar is shared with members (annual dues from $23). Trail and road; the trail side is dog-friendly where land allows.

Trail Run⚠ Needs verification

Breck Crest Mountain Marathon

Maverick Sports Promotions

Annual trail race · late summer

Breckenridge

PaidSummer

Maverick Sports’ flagship high-alpine trail race (half-marathon and 10K options) over Breckenridge ridgelines. Annual calendar event — check the site for the 2026 date.