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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

Latest Past Events

Boulder Octopus Ride

The Vail/Boulder Octopus is an endurance road bike event that tackles Eagle/Boulder County’s eight quintessential climbs. The ride alternates between Boulder and Vail biennially. It is very challenging but for

Tour de Cure Colorado

12M, 30M, 63M and 100M Cycling; 5K Run; 5K WalkRegistration fee: $10
Fundraising Minimum: $250 for cyclists; $100 for walkers and runners; $50 for 12 and under


Over 30 million

The Denver Post Pedal The Plains Bicycle Tour

Pedal The Plains (PTP) is a bicycle tour of Colorado, a signature event of The Denver Post Community Foundation and an initiative of The Denver Post and the State of