Colorado Triathlete

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Colorado Multisport Calendar

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BBSC Endurance Sports

Boulder Rez Marathon

Boulder Reservoir 5275 Reservoir Road, Boulder

This amazing run course will take you alongside the Boulder Reservoir, remaining mostly on dirt roads and trails. The course is flat with only 200 feet of gain, and will […]

Frisco, Colorado

Run the Rockies Trail 10K & Half Marathon

Frisco Nordic Center 616 Recreation Way, Frisco

The Run the Rockies Trail 10k and Half Marathon will lead runners through the Frisco Peninsula trails with breathtaking views of Lake Dillon and the Ten Mile Range. This is […]

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