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OCT 2026

20
SAT
3
OCT
Run·Road·5K

Rut Run 5k

Estes Park, US
SAT
3
OCT
Run·Road·5K

Homecoming 5K - Colorado State University

Fort Collins, US
SAT
3
OCT
Run·Road·5K·10K

Lafayette Music Fest -5K - 10K

Lafayette, US
SAT
3
OCT
Run·Road·5K

PRA Miner Gold Rush

Broomfield, US
SAT
3
OCT
Run·Road·5K

I Can 5k

Thornton, US
SAT
3
OCT
Run·Road·Ultra

The Bear Chase

Lakewood, US
SAT
3
OCT
Run·Road·Ultra

International Taco Bell 50K Ultramarathon

Denver, US
SAT
3
OCT
Run·Trail·10K·Half

HRCA Wildcat Mountain Trail Races

Littleton, US
SAT
3
OCT
Run·Road·5K·10K·Half

Spooky Sprint Denver 5k/10k & Half Marathon

Littleton, US
SAT
3
OCT
Run·Road·5K·10K·Half

Spooky Sprint - Denver

Littleton, US
SAT
3
OCT
Run·Trail·5K·10K·Half·+1

Castle Rock Trail Festival / liveBIG Run

Castle Rock, US
SAT
3
OCT
Run·Trail·10K·Half

Emerald Mountain Trail Run

Steamboat Springs, US
SAT
3
OCT
Run·Trail·10K·Ultra

Above the Clouds Ultra

Woodland Park, US
SAT
3
OCT
Run·Road·5K·Half·Full

Colorado Springs Marathon

Colorado Springs, US
SAT
3
OCT
Run·Road·5K·Half·Full

Colorado Springs Marathon, Half, 5K, and Kids K

Colorado Springs, US
SAT
3
OCT
Run·Trail·5K·Half

Rim to Rim Royal Gorge Races

Canon City, US
SAT
3
OCT
Run·Trail·5K·10K·Half

Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon

Canon City, US
SUN
4
OCT
Run·Road·5K·10K·Half

SKECHERS Hot Chocolate Run Denver

Denver, US
SUN
4
OCT
Run·Road·5K·Half

RMRR October Trophy Series

Aurora, US
SUN
4
OCT
Run·Road·5K

Rubey Rescue Run

Aspen, US