IRONMAN Boise
IRONMAN Boise, part of the IRONMAN series, is a triathlon held in Boise, United States. The 2026 edition took place on Saturday, 25 July 2026. It is run over the Half / 70.3 distance.

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 Boise?
- Date
- Saturday, 25 July 2026
- Format
- Half / 70.3
- Water temp
- 28.1°C · 83°F
Need to know
When is IRONMAN Boise 2026?
IRONMAN Boise takes place on Saturday, 25 July 2026. Dates can move year to year, so confirm the exact day on the official race page before you book travel.
Where does IRONMAN Boise take place?
Boise, United States
When has IRONMAN Boise taken place before?
FAQs
What do athletes ask about IRONMAN Boise?
Where is IRONMAN Boise held?
IRONMAN Boise is held in Boise, the United States. 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 Boise?
IRONMAN Boise 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 Boise?
IRONMAN Boise 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 Boise?
The swim at IRONMAN Boise is around 28.1°C (83°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 Boise?
You enter IRONMAN Boise 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 Boise part of a race series?
Yes, IRONMAN Boise 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 Boise?
Training for IRONMAN Boise 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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