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Have an event to List?
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

10th Annual Winter Walk and Bike Week

Boulder County CO

Boulder County   Get your bike winter-ride ready and break out the long johns, so you can stay warm while you take part in this awesome event! Even if it snows, you can still ride because Boulder County Road MaintenanceRead More

Silverton Whiteout

Silverton   10 hour Fat Bike Race Not just a Fat Bike race but all sorts of fun!   Event details and registration here

Catalyst Coaching Santa Barbara Training Camp

Santa Barbara   Come discover what the pros have known for years: the riding in Santa Barbara is incredible.     For the past few years, Catalyst Coach Nate Wilson has been putting on European cycling camps for the USRead More

WinterBike @ Copper Mountain

Copper Mountain Copper Mountain

Copper Mountain   These unique and exciting races occur throughout the winter in and around Leadville. Utilizing groomed nordic ski trails, groomed singletrack, and snowmobile trails, these races are a great way to keep riding and racing during the off-season.Read More