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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all.  To have an event posted here please follow this link:  Event Policy Submission & Guidelines

All Day

Leadville Winter Bike Series 50k

Cycles of Life Bicycles 309 Harrison Ave, Leadville

Leadville   This will be the first year of this exciting event with challenging climbs and exciting descents. Day time event. More info coming soon!   Event details here Winter Bike Series Events: Feb 3  Winter Bike at Copper MountainRead More

Pedaling for St. Pats

Colorado Springs   Join hundreds of cyclists for your choice of ride across the city. Three courses to choose from ranging from a family friendly course to a grueling but amazing ride from Downtown to the top of Woodmen atRead More


lory state park 708 N Co Rd 25G, Bellvue

Ft. Collins   The Four Seasons of Horsetooth Mountain Bike Challenge is a grass-roots un-event with no entry fees and no real start times and is ridden on the two solstices and two equinoxes in Horsetooth Mountain Park and Lory State Park. ByRead More

St. Patrick’s Day Ride

Performance Bicycle - Glendale 358 S Colorado Blvd, Glendale

Glendale   Saint Patrick's Day VIP EVENT! We'll have bagels, coffee, and juice to fuel up before the ride. And of course-extra points for wearing your green apparel! You’re invited to join our Saturday morning group ride starting from andRead More