Set to the backdrop of the iconic Flatirons, Boulder has long been a mecca for triathlon. Ironman athletes tell you it’s the access to legendary coaches like six-time Ironman world champion Dave ...

A bicyclist killed in a collision with a pickup truck during the IRONMAN Boulder race on Sunday veered from a dedicated bike lane, hit the truck, and fell to the roadway before she was run over.

Boulder native Sidney Andrew, 22, last month claimed a victory in the 18- to 24-age group of the Ironman World Championship 70.3 in Nice, France.

Boulder’s Ironman 70.3 is set for Saturday, and residents and visitors in the area should be aware of potential delays and road detours.

And while Ironman made its debut in Boulder a year ago to the delight of the racing community, the company has a long-standing presence in the area.

A 34-year-old Ironman Boulder competitor from Nebraska was struck and killed by a vehicle Sunday morning while competing in the cycling leg of the triathlon on U.S. 36 north of Boulder, State ...

An athlete died a day after being pulled from the water during the Boulder Ironman 70.3 triathlon in Colorado. It was the third death in four years of Ironman competitions in Boulder.

The inaugural Boulder Ironman Aug. 3 is expected to have the largest Ironman field ever.

Boulder's Ironman 70.3 is set for Saturday, and residents and visitors in the area should be aware of potential delays and road detours.

BOULDER, Colo. (AP) — An athlete died a day after being pulled from the water during the Boulder Ironman 70.3 triathlon in Colorado. It was the third death in four years of Ironman competitions ...