IRONMAN Cozumel
IRONMAN Cozumel offers both distances on 20 September 2026, the full at 3.8 km / 180 km / 42.2 km and the half at 1.9 km / 90 km / 21.1 km, on an island off the Yucatán coast.
The swim is the reason people enter. It is clear water over reef with a current running along the coast, so one direction is quick and the other is honest work. Visibility is the best you will find at any race on this calendar.
The bike is flat and loops the island, which means a long exposed windward stretch on every lap. Wind here is not a footnote, it is the bike split.
The planning problem is heat and timing. September on the Yucatán is hot, humid and inside the Atlantic hurricane season. A flexible flight and travel insurance are worth more to this trip than an extra week of training.
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
- want a choice of distances
Maybe not if you…
- are brand-new to triathlon: start with something shorter
What should you know about IRONMAN Cozumel?
- Date
- Sunday, 20 September 2026
- Format
- Half / 70.3 · Full Distance / 140.6
- Water temp
- 28°C · 82°F
Need to know
When is IRONMAN Cozumel 2026?
IRONMAN Cozumel takes place on Sunday, 20 September 2026. 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 Cozumel?
Where does IRONMAN Cozumel take place?
Cozumel, Mexico
FAQs
What do athletes ask about IRONMAN Cozumel?
Where is IRONMAN Cozumel held?
IRONMAN Cozumel is held in Cozumel, Mexico. 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 Cozumel?
IRONMAN Cozumel offers Half / 70.3 and Full Distance / 140.6. 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 Cozumel?
IRONMAN Cozumel is rated elite (5/5) 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 Cozumel?
The swim at IRONMAN Cozumel is around 28°C (82°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 Cozumel?
You enter IRONMAN Cozumel 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 Cozumel part of a race series?
Yes, IRONMAN Cozumel 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 Cozumel?
Training for IRONMAN Cozumel 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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