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  • Racing Underground

    Barkin’ Dog Duathlon

    Cherry Creek State Park 4201 South Parker Road, Aurora, CO, United States

    Participants can choose from the standard 5K Run, 34K Bike, 5K Run event or the short course which challenges participants with a 1.2 Mile Run, 11 Mile Bike, 5K Run.

  • Without Limits Productions

    Colorado Triathlon

    Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

    Colorado Sprint Triathlon: 750 meter swim, rolling and fast 17 mile bike, and finishes with a 3.1 mile run Colorado Olympic Triathlon: 1500m swim, 23.5 mile bike, and a 10k run Colorado Olympic Duathlon: 5k run, 23.5 mile bike, and a 10k run Colorado Aquabike: Will feature a 1500 meter swim and a 24.8m bike

  • BBSC Endurance Sports

    Boulder Sunrise Triathlon

    Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

    Kick off your summer of racing in Boulder.

  • Pagosa Duathlon

    Pagosa Duathlon

    Pagosa Springs Pagosa Springs, CO, United States

    ​Race routes integrate beginner and intermediate levels of single-track trails, dirt and gravel roads. The venue of the San Juan National Forest could not be more perfect for athletes as they trek through aspen groves, grassy fields, and the dreaded rocky Piedra Stock driveway. The course is fast, testing each competitor’s endurance, speed and ability.

XTERRA Wetsuits