IRONMAN San Juan
IRONMAN 70.3 San Juan is on 1 March 2027 in western Argentina, where the swim is in a reservoir under the Andes rather than in the sea and the 90 km bike rolls through dry mountain country.
This is a desert province, and that shapes the day more than the profile does. The air is very dry, so you lose fluid faster than you notice and the run punishes anyone who under-drinks early. Shade is scarce on the bike.
March is the end of the Argentine summer, hot in the afternoon and cool at dawn, which is a useful combination for a morning start. The reservoir water is clean and calm, and a lake swim removes the surf and current variables that come with the coastal races on this calendar.
Reaching San Juan means Buenos Aires and then a domestic flight, or a long drive over the Andes from Santiago if you are combining it with a Chilean race.
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 San Juan?
- Date
- Sunday, 11 April 2027
- Format
- Half / 70.3
- Water temp
- 23.8°C · 75°F
Need to know
When is IRONMAN San Juan 2027?
IRONMAN San Juan takes place on Monday, 1 March 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 San Juan?
Where does IRONMAN San Juan take place?
San Juan, Argentina
When has IRONMAN San Juan taken place before?
FAQs
What do athletes ask about IRONMAN San Juan?
Where is IRONMAN San Juan held?
IRONMAN San Juan is held in San Juan, Argentina. 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 San Juan?
IRONMAN San Juan 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.
How hard is IRONMAN San Juan?
IRONMAN San Juan is rated competitive (4/5) for difficulty on FindMyNextRace, based on its distance, terrain, and the level of the field. Use that as a guide and match it to your current fitness before you commit.
What's the water temperature at IRONMAN San Juan?
The swim at IRONMAN San Juan is around 23.8°C (75°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 San Juan?
You enter IRONMAN San Juan 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 San Juan part of a race series?
Yes, IRONMAN San Juan 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 San Juan?
Training for IRONMAN San Juan 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).
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