Wondering what's open? Read the latest on what to expect in Boulder during COVID-19.

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    IRONMAN 70.3

    Overview 

    This "half Ironman" takes place at the Boulder Reservoir with a spectacular Rocky Mountain backdrop. The event has been an athlete favorite for over a decade and is one of the fastest IRONMAN events to sell out each year.

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    Official Website of the Boulder
    Convention & Visitors Bureau
     2440 Pearl Street, Boulder, CO 80302
    303.442.2911     Official Website of the Boulder
    Convention & Visitors Bureau
     2440 Pearl Street, Boulder, CO 80302  |  303.442.2911
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