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Triathlon Atlas

Half distance · 29 August 2027

IRONMAN 70.3 Zell am See-Kaprun

Zell am See, Austria

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
29 Aug 2027
Registration
Sold out
Swim venue
Lake
Average water temperature
17 °C
Bike profile
Hilly
Bike elevation gain
1,011 m
Run profile
Flat
Run elevation gain
74 m
High air temperature
25 °C
Low air temperature
16 °C
Overall cut-off
8 h 30 min
Altitude
750 m
First edition
2012
Swim start
Rolling start

Edition history

202630 Aug 2026Held
202531 Aug 2025Held
20241 Sept 2024Held
20233 Sept 2023Held
202228 Aug 2022Held
202129 Aug 2021Held
20191 Sept 2019Held
201826 Aug 2018Held
201727 Aug 2017Held
201628 Aug 2016Held

How the day is laid out

The swim is held in a lake. The wetsuit call is made on race morning, against the temperature measured then.

The organiser publishes 1.9 km of swimming, 90 km on the bike and 21.1 km of running.

The swim uses a rolling start: athletes enter the water a few at a time. The water is usually around 17 °C at this time of year.

The bike course is hilly, with about 1,011 m of climbing.

The run course is flat, with about 74 m of climbing.

Typical temperatures for the month run from 16 to 25 °C. The overall cut-off is 8 h 30 min.

The race was first held in 2012.

The water measured on race day

ironman.com publishes the Lake Zell temperature measured on race day: 23 °C in 2024 and 21 °C in 2025, with no reading for 2026. Both are well above the 17 °C average shown at the top of the race page. Under the 2026 IRONMAN rules, age-group athletes may wear a wetsuit up to 24.5 °C, so it was allowed in both years.

The bike climbs through the mountains above the lake and the run follows the shore. The maps online are those of 2026; the 2027 maps will be published closer to the race. Race-day air reached 30 °C in 2024.

Source: ironman.com, read on 29 October 2026.

Against the calendar

Where this race sits among the others

Ranks are computed across every race of the same distance.

  • Average water temperature

    17 °C · median 21 °C

    The 8th coldest of the 128 middle-distance races with a figure, across every circuit.

  • High air temperature

    25 °C · median 25 °C

    The 71st coolest of the 152 middle-distance races with a figure, across every circuit.

  • Bike elevation gain

    1011 m · median 569 m

    The 17th hilliest of the 105 middle-distance races with a figure, across every circuit.

11

races of this distance pair a hilly bike with a flat run, out of 159. 29 share the bike profile alone.

42

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

160

races are held in Europe. 32 of them in the same month as this one.

Questions about this race

When is IRONMAN 70.3 Zell am See-Kaprun 2027?
IRONMAN 70.3 Zell am See-Kaprun is held on 29 August 2027 in Zell am See, Austria. The race is sold out.
Is a wetsuit allowed at IRONMAN 70.3 Zell am See-Kaprun?
Most likely. The average water temperature is 17 °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 Zell am See-Kaprun?
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 Zell am See-Kaprun?
The bike course climbs about 1011 m, the 17th hilliest of 105 half-distance races with a figure. The bike is labelled hilly and the run flat. Expect highs of about 25 °C on race day.

Where to stay

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

Suggested stay: 27 Aug 2027 to 30 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