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    High-altitude training

    IRONMAN Boulder

    August 7, 2016 

    IRONMAN returns to Boulder for the third year! As one of the world's most popular triathlon destinations, Boulder hosted a raved-about IRONMAN in 2014 and 2015 and is excited to bring the famous triathlon back on Aug. 7, 2016.


    Nestled at the foot of the imposing Flatirons, Boulder, Colorado, is already a wildly popular home-base and vacation destination for world-class triathletes. The city's health-conscious culture, near-perfect weather and breathtaking natural environment make it a favorite on the IRONMAN circuit. 

    2016 Hotel Reservations

    Get a jump on your IRONMAN Boulder 2016 plans and book your hotel now. Reference 2016 IRONMAN for host hotel special rates. 

    IRONMAN Boulder 2016 Event Information

    The race will start at the Boulder Reservoir with a single-loop 2.4-mile swim. Once finished in the water, the first transition will start the athletes on a beautiful 112-mile one-loop bike course entirely within Boulder County. It features amazing mountain views with some of the same roads trained on by many of our local world champion triathletes.

    The two-loop run course is almost entirely on Boulder Creek Trail, winding along the creek and through city parks. Spectators will have multiple opportunities to cheer on the athletes and the last few steps of the day will take athletes up Pearl Street for a triumphant finish. 

    View the IRONMAN website for course maps

    IRONKIDS Fun Run

    On Aug. 6, 2016, a non-competitive and non-timed event gives kids 15 or younger a chance to take part with a 1/4-mile or 1-mile run. Each athlete receives a race bib, finisher shirt or trucker hat, medal, goodie bag and the pride of calling themselves an IRONKID! More info here.

    For more information, visit the official IRONMAN Boulder website