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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.

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June 2019


June 9
Boulder Reservoir Boulder, CO United States + Google Map

Boulder   Nestled at the foot of the Flatirons Mountains, Boulder, Colorado is a wildly popular home-based and vacation destination for triathletes. The city's health-conscious culture, near-perfect weather and breathtaking natural environment made it an instant favorite from the first running. Once finished in the water, the first transition will start athletes on a beautiful multi-loop course all contained within Boulder County, The course has a few pronounced climbs, but in general it's a fast one. Once done with the…

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August 2019

IRONMAN 70.3 Boulder

August 3
Boulder Reservoir Boulder, CO United States + Google Map

Boulder   IRONMAN 70.3 Boulder kicks off at the pristine Boulder Reservoir with its spectacular Rocky Mountain backdrop. This even has been an athlete favorite for over a decade. IRONMAN 70.3 Boulder is one of the fastest IRONMAN events to sell out each year--making it one of the most sought-after races in the country. The extremely fast course provides personal records for many, even our local professional field. Where else in the country can you race against the best in…

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September 2019

IRONMAN 70.3 World Championships

September 7 - September 8

Nice, France   Nice will host the very best IRONMAN elite athletes on the planet on the weekend of September 7-8, 2019 as well as some of the most-committed age-group competitors from all corners of the globe. In total, an estimated 6,000 participants will descend on the French Riviera. Although it will be the first time the IRONMAN 70.3 World Championship has been held in France, the tourist-hotspot of Nice has been hosting IRONMAN races since 2005 and is one…

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October 2019

IRONMAN World Championships

October 12
Hawaii HI United States + Google Map

Kailua-Kona, HA   The IRONMAN World Championship centers on the dedication and courage exhibited by participants who demonstrate the IRONMAN mantra that ANYTHING IS POSSIBLE.® On October 12th, over 2,000 athletes will embark on a 140.6-mile journey that presents the ultimate test of body, mind and spirit to earn the title of IRONMAN.   Event details and registration here   *To the best of our abilities, this information is correct. Please check the event website for the most accurate information.

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