IRONMAN 70.3 Boise

Date
July 24, 2027
Location
Boise, United States
Race type
IRONMAN 70.3 — 70.3 mi (113 km)
Swim
Reservoir
Bike course
Hilly
Run course
Flat
Avg. air temperature
85F/29C
Avg. water temperature
67F/19C
Nearest airport
Boise Airport (BOI)

Official race page on ironman.com

Browse related

FAQ

When is IRONMAN 70.3 Boise?

IRONMAN 70.3 Boise is scheduled for July 24, 2027.

Where is IRONMAN 70.3 Boise?

IRONMAN 70.3 Boise is held in Boise, United States (North America).

What is the course like at IRONMAN 70.3 Boise?

IRONMAN 70.3 Boise is an IRONMAN 70.3 race (70.3 mi (113 km)) with a reservoir swim, a hilly bike course and a flat run course.

Is IRONMAN 70.3 Boise wetsuit legal?

The average water temperature is 67°F (19°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 Boise?

The nearest airport listed for IRONMAN 70.3 Boise is Boise Airport (BOI).

How do I register for IRONMAN 70.3 Boise?

Registration is handled on the official IRONMAN race page: https://www.ironman.com/races/im703-boise