IRONMAN World Championship

Date
October 9, 2027
Location
Kona, United States
Race type
IRONMAN — 140.6 mi (226 km)
Swim
Ocean
Bike course
Rolling
Run course
Rolling
Avg. air temperature
82F/28C
Avg. water temperature
79F/26C
Nearest airport
Kona International Airport (KOA)

Official race page on ironman.com

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FAQ

When is IRONMAN World Championship?

IRONMAN World Championship is scheduled for October 9, 2027.

Where is IRONMAN World Championship?

IRONMAN World Championship is held in Kona, United States (North America).

What is the course like at IRONMAN World Championship?

IRONMAN World Championship is an IRONMAN race (140.6 mi (226 km)) with a ocean swim, a rolling bike course and a rolling run course.

Is IRONMAN World Championship wetsuit legal?

The average water temperature is 79°F (26°C), which is above the 76.1°F (24.5°C) wetsuit-legal limit; some events offer a separate non-competitive wetsuit wave up to 83.8°F (28.8°C), but those athletes aren't eligible for awards or slots 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 World Championship?

The nearest airport listed for IRONMAN World Championship is Kona International Airport (KOA).

How do I register for IRONMAN World Championship?

Registration is handled on the official IRONMAN race page: https://www.ironman.com/races/im-world-championship-kona