IRONMAN Switzerland
The Swiss 70.3 starts with 1,900 m in the Obersee, the upper arm of Lake Zurich, in water that is clear, deep, and cold enough in early June to be the most memorable part of some athletes' day.
The 90 km bike is hilly rather than mountainous, with steady climbs and fast descents on good Swiss road surfaces, and views that make the effort easier to accept than the gradients deserve.
Then the run. The 21.1 km course includes a stair climb the race calls the Stairway to Heaven, and it arrives at exactly the point where you have stopped wanting new information about your legs. It is a walking section for most of the field and there is no shame in that.
Switzerland is expensive, and race weekend does not soften it. Book accommodation in Rapperswil early or plan to commute in from Zurich by train, which is at least reliable.
Who it's for
Built for experienced triathlon athletes.
Good fit if you…
- are experienced in triathlon and want a hard race
- want a well-known, high-status race
Maybe not if you…
- are brand-new to triathlon: start with something shorter
What should you know about IRONMAN Switzerland?
- Date
- Sunday, 6 June 2027
- Format
- Half / 70.3
- Water temp
- 21°C · 70°F
Need to know
When is IRONMAN Switzerland 2027?
IRONMAN Switzerland takes place on Sunday, 6 June 2027. Dates can move year to year, so confirm the exact day on the official race page before you book travel.
How do you register for IRONMAN Switzerland?
Where does IRONMAN Switzerland take place?
Rapperswil-Jona, Switzerland
When has IRONMAN Switzerland taken place before?
FAQs
What do athletes ask about IRONMAN Switzerland?
Where is IRONMAN Switzerland held?
IRONMAN Switzerland is held in Rapperswil-Jona, Switzerland. The race page has the venue location and a map, and links straight through to the official site for the precise start area.
What distances can you race at IRONMAN Switzerland?
IRONMAN Switzerland offers Half / 70.3. The Half / 70.3 is a 1.9 km swim, 90 km bike and 21.1 km run. Pick your distance and enter on the official site. Each format usually has its own start wave and cut-offs.
What's the water temperature at IRONMAN Switzerland?
The swim at IRONMAN Switzerland is around 21°C (70°F), based on the official average for the venue. Water temperature drives wetsuit rules, so check the organiser's current wetsuit policy before race day.
How do I enter IRONMAN Switzerland?
You enter IRONMAN Switzerland through the official organiser. Registration is handled on their site, and FindMyNextRace links you straight there. Places for popular editions can sell out early, so register as soon as entry opens.
Is IRONMAN Switzerland part of a race series?
Yes, IRONMAN Switzerland is part of the IRONMAN series. Series events often share a qualification, points, or championship pathway, so if you're chasing the series, check how this race fits its calendar.
How should I train for IRONMAN Switzerland?
Training for IRONMAN Switzerland depends on your target distance and current fitness. Most athletes follow a structured block of 12–20 weeks for a Half / 70.3 effort. Build a plan tailored to your race date and level with AI Training Plan (https://aitrainingplan.app).
You might also like
Similar triathlon races.