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Triathlon Atlas

Half distance · 5 June 2027

IRONMAN 70.3 Hawai`i

Also known as IRONMAN 70.3 Hawaii

Kohala Coast, United States

The race at a glance

Official race website
Circuit
IRONMAN
Distance
Middle distance
Terrain
Road
Swim
1.9 km
Bike
90 km
Run
21.1 km
Date
5 Jun 2027
Registration
Open
Swim venue
Ocean
Average water temperature
24 °C
Bike profile
Rolling
Bike elevation gain
759 m
Run profile
Rolling
Run elevation gain
98 m
High air temperature
30 °C
Low air temperature
24 °C
Overall cut-off
8 h 30 min
Altitude
1 m
First edition
2005
Swim start
Rolling start

Edition history

202630 May 2026Held
202531 May 2025Held
20241 Jun 2024Held
20233 Jun 2023Held
20224 Jun 2022Held
20215 Jun 2021Held
20191 Jun 2019Held
20182 Jun 2018Held
20173 Jun 2017Held
20164 Jun 2016Held

How the day is laid out

The swim is held in the ocean. An average of 24 °C is warm. Wetsuit use is commonly restricted above this point, and the swim becomes a question of heat more than of cold.

The bike leg is labelled rolling.

The run is labelled rolling, over 2 laps.

A rolling bike and a rolling run keep the effort changing all day, so pace by feel rather than by speed.

Expect air between 24 °C and 30 °C on race day. A spread of 6 degrees across the day matters as much as the peak, because what you wear at the swim exit is rarely what you want at the far end of the bike.

Against the calendar

Where this race sits among the others

Ranks are computed across every race of the same distance.

  • Average water temperature

    24 °C · median 21 °C

    The 35th warmest of the 128 middle-distance races with a figure, across every circuit.

  • High air temperature

    30 °C · median 25 °C

    The 31st hottest of the 152 middle-distance races with a figure, across every circuit.

  • Bike elevation gain

    759 m · median 569 m

    The 39th hilliest of the 105 middle-distance races with a figure, across every circuit.

19

races of this distance pair a rolling bike with a rolling run, out of 159. 58 share the bike profile alone.

58

races across every distance fall in June, out of 354.

68

races are held in North America. 11 of them in the same month as this one.

Questions about this race

When is IRONMAN 70.3 Hawaii 2027?
IRONMAN 70.3 Hawaii is held on 5 June 2027 in Kohala Coast, United States. Registration is open on the official race page.
Is a wetsuit allowed at IRONMAN 70.3 Hawaii?
Most likely. The average water temperature is 24 °C, below the 24.5 °C limit up to which wetsuits are allowed for age-group athletes. The official call is made on race morning.
What is the cut-off at IRONMAN 70.3 Hawaii?
The course closes 8 h 30 min after the start. Intermediate cut-offs after the swim and the bike are in the athlete guide.
How hard is IRONMAN 70.3 Hawaii?
The bike course climbs about 759 m, the 39th hilliest of 105 half-distance races with a figure. The bike is labelled rolling and the run rolling. Expect highs of about 30 °C on race day.

Where to stay

Hotels and rentals around the race venue, for the nights around race day.

Suggested stay: 3 Jun 2027 to 6 Jun 2027

The map is provided by Stay22. Bookings are made with the provider.

Races of the same distance in the same region

Entries are handled by the organiser

Registration and the athlete guide are on the official race page.

Open the official race page