Colorado summer doesn’t start until the race gun goes off for the Bolder Boulder. The marquee 10K is an annual showcase of the quirky and the inspiring. The day mixes an upward of 40,000 competitors, a Memorial Day celebration inside Folsom Field, and a crowd of adoring spectators.
Tens of thousands of runners fill the streets every year, from people running in costumes or pajamas to professional athletes drawn by the race’s hefty prize purses. Along the route, some fans have cookouts. Others cheer and spray competitors with a water hose while live music blares at points along the route.
Bolder Boulder
5500 Central Ave, Boulder, CO 80301, USA (40.019116, -105.224891)
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