Ironman 70.3 Boulder

IRONMAN 70.3 Boulder is a premier triathlon event held in Boulder, Colorado, at the foot of the Rocky Mountains. The race features a stunning course that includes a swim in the Boulder Reservoir, a scenic and hilly mountain bike ride, and a challenging run through Boulder’s picturesque trails and roads. Known for its breathtaking views of the iconic Flatirons and mild climate, the event offers athletes a unique outdoor experience in a vibrant community.

Boulder also provides a lively post-race atmosphere with world-class dining, shopping, and craft beer, making it a favorite destination for endurance athletes and their supporters. Visit the organization's website for the most recent information.