70.3 Boulder

IRONMAN 70.3 Boulder kicks off at the pristine Boulder Reservoir with its spectacular Rocky Mountain backdrop.

This event has been an athlete favorite for over a decade. IRONMAN 70.3 Boulder is one of the fastest IRONMAN events to sell out each year—making it one of the most sought-after races in the country.

The extremely fast course provides personal records for many, even our local professional field. Where else in the country can you race against the best in the world on their home training ground?

Boulder was founded in 1858, featuring the renowned Red Rocks amphitheater and Chautauqua, an unparalleled hiking, music, and picnic destination. From vineyards and breweries to shopping and mountain climbing, there are activities for everyone. Popular venues include the Pearl Street Mall and the 29th Street Retail District. Pearl Street's pedestrian throughway comes alive at night with live music and entertainment for everyone. The creativity and spirit of Boulder, Colo. will bring you back year after year.Check out bouldercoloradousa.com to plan your trip.

The 2017 IRONMAN 70.3 Boulder will offer 30 qualifying slots to the 2018 IRONMAN 70.3 World Championship in Nelson Mandela Bay, South Africa.

The Boulder Reservoir
5565 N 51st St.
Boulder, Colorado 80301

Saturday, Aug 5, 7:00am




More Upcoming Races . . .

Friday, Jun 2, 6:00am
Sunday, Jun 11, 7:00am
Sunday, Jul 9, 6:30am

Founded in 2006 by local triathletes Preston Miller, Lewis Elliot and Marc Rubin, Tri-Scottsdale is a non-profit organization and triathlon club, dedicated to helping athletes of all levels reach their potential, from beginners to elite to professional triathletes, through daily workouts, beginner clinics, and athlete mentoring. Our annual Tri for the Cure AZ brings all members together to support a great cause, having raised over $300,000.00 for cancer research.

Ride
Tuesday, May 30, 5:30am

Run
Wednesday, May 31, 5:30am

Ride
Thursday, Jun 1, 5:30am

Run
Friday, Jun 2, 5:30am

Friday, Jun 2, 6:00am

Deuces Wild Tri Festival
Friday, Jun 2, 6:00am