17 races in date order
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Running Up for Air - Staunton Rocks
Timed climbs up Staunton State Park's trails
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All-Out Mardi Crawl
Along Ralston Creek Trail through Arvada's greenways
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FRUITA SWEETHEART RUN 2026
On Fruita's red-rock desert trail network
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Stories Trail Runs
Trail loops beneath Pikes Peak and Cheyenne Mountain
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Sourdough Snowshoe Race
Snowshoe race through the Brainard Lake backcountry
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Super Bowl 5K
Football-themed 5K in Denver's Washington Park
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Centennial Park – Trophy Series 11k and 5k
Along the South Platte River Trail at Centennial Park
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Colorado Outdoor Pace Series
Races on South Table Mountain's police training track
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Bacon Strip Race
Undulating dirt roads outside Fort Collins, then bacon
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Your next race, seen from above.
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
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Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.