IRONMAN 70.3 Boulder
- Date
- June 12, 2027
- Location
- Boulder, United States
- Race type
- IRONMAN 70.3 — 70.3 mi (113 km)
- Swim
- Reservoir
- Bike course
- Hilly
- Run course
- Hilly
- Avg. air temperature
- 73F/23C
- Avg. water temperature
- 62F/17C
- Nearest airport
- Denver International Airport (DEN)
Official race page on ironman.com
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FAQ
When is IRONMAN 70.3 Boulder?
IRONMAN 70.3 Boulder is scheduled for June 12, 2027.
Where is IRONMAN 70.3 Boulder?
IRONMAN 70.3 Boulder is held in Boulder, United States (North America).
What is the course like at IRONMAN 70.3 Boulder?
IRONMAN 70.3 Boulder is an IRONMAN 70.3 race (70.3 mi (113 km)) with a reservoir swim, a hilly bike course and a hilly run course.
Is IRONMAN 70.3 Boulder wetsuit legal?
The average water temperature is 62°F (17°C), which is within the age-group wetsuit-legal range (up to and including 76.1°F / 24.5°C) under the 2026 IRONMAN Competition Rules. The official call is made from the water temperature measured on race morning.
What is the nearest airport to IRONMAN 70.3 Boulder?
The nearest airport listed for IRONMAN 70.3 Boulder is Denver International Airport (DEN).
How do I register for IRONMAN 70.3 Boulder?
Registration is handled on the official IRONMAN race page: https://www.ironman.com/races/im703-boulder