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Triathlon Atlas

Full distance · 8 August 2027

IRONMAN Canada-Ottawa

Ottawa, Canada

The race at a glance

Official race website
Circuit
IRONMAN
Distance
Full distance
Terrain
Road
Swim
3.8 km
Bike
180 km
Run
42.2 km
Date
8 Aug 2027
Registration
Open
Swim venue
River
Average water temperature
21 °C
Bike profile
Rolling
Bike elevation gain
869 m
Run profile
Flat
Run elevation gain
236 m
High air temperature
28 °C
Low air temperature
15 °C
Overall cut-off
17 h
Altitude
70 m
First edition
2025

Edition history

20262 Aug 2026Held
20253 Aug 2025Held

How the day is laid out

The swim is held in a river, over 1 loop. An average of 21 °C is close to the threshold where wetsuit rules start to tighten. Plan for both answers and check the call on race morning.

The bike leg is labelled rolling and runs over 5 loops.

The run is labelled flat, over 1 lap.

A rolling bike ahead of a flat run keeps the climbing on the bike and lets the run settle into a rhythm.

Expect air between 15 °C and 28 °C on race day. A spread of 13 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

    21 °C · median 22 °C

    The 16th coldest of the 48 full-distance races with a figure, across every circuit.

  • High air temperature

    28 °C · median 25 °C

    The 15th hottest of the 52 full-distance races with a figure, across every circuit.

  • Bike elevation gain

    869 m · median 1130 m

    The 17th flattest of the 43 full-distance races with a figure, across every circuit.

13

races of this distance pair a rolling bike with a flat run, out of 55. 20 share the bike profile alone.

42

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

68

races are held in North America. 5 of them in the same month as this one.

Questions about this race

When is IRONMAN Canada-Ottawa 2027?
IRONMAN Canada-Ottawa is held on 8 August 2027 in Ottawa, Canada. Registration is open on the official race page.
Is a wetsuit allowed at IRONMAN Canada-Ottawa?
Most likely. The average water temperature is 21 °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 Canada-Ottawa?
The course closes 17 h after the start. Intermediate cut-offs after the swim and the bike are in the athlete guide.
How hard is IRONMAN Canada-Ottawa?
The bike course climbs about 869 m, the 17th flattest of 43 full-distance races with a figure. The bike is labelled rolling and the run flat. Expect highs of about 28 °C on race day.

Where to stay

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

Suggested stay: 6 Aug 2027 to 9 Aug 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