IRONMAN 70.3 Boulder

Boulder, CO, United States · 70.3 (Half-Ironman) · Outdoor · Organized by Ironman

Iconic Flatirons. Beautiful Boulder. Nestled at the foot of the Rocky Mountains, this race offers athletes a spectacular course and unique racing experience. With its breathtaking views, mild climate and vibrant community, Boulder truly is an outdoor playground for endurance athletes. Boulder caters to the outdoor enthusiast and not only provides epic trails and outdoor activities but also world-class dining, shopping, events and craft beer and spirits. Boulder gives you a taste of everything Colorado. Boulder, Colorado. An Outdoor Mecca.