IRONMAN 70.3 Boulder 2027
June 12, 2027
Boulder, CO, US
About
Set against the backdrop of the iconic Flatirons and the towering Rockies, this high-altitude course features a swim at Boulder Reservoir followed by hilly bike and run legs, demanding strength, strategy, and stamina from athletes.
Pick your distance
Everything below adapts to your choice
Why this race
- Listed on the official IRONMAN, 70.3 and 5150 calendar.
The information shown here is based on the most recent listing we could find, and may change. Always confirm details on the event's official site before registering.
Not this one?
35-week plan, built around your data
Get my plan in the app