Ironman 70.3 Boulder

The IRONMAN 70.3 Boulder is a premier endurance event set in the picturesque city of Boulder, Colorado, known for its iconic Flatirons and vibrant outdoor culture. This race offers athletes a challenging course that includes a swim in a reservoir, a hilly bike ride, and a scenic run. Boulder is celebrated as an outdoor playground, providing not only epic trails and activities but also exceptional dining, shopping, and craft beverages.

Participants can also earn qualifying slots for the 2025 VinFast IRONMAN 70.3 World Championship. The event embodies the spirit of endurance and adventure in a stunning Colorado setting. Visit the organization's website for the most recent information.