IRONMAN Swansea
Swansea's 70.3 starts with 1,900 m in the Prince of Wales Dock, enclosed water rather than open sea, which removes the swell and the sighting problems that put people off coastal racing. It is sheltered, predictable, and not remotely scenic.
The 90 km bike then runs along Swansea Bay towards the Gower, flat by Welsh standards, and the 21.1 km run comes back through the city and the waterfront.
The variable is weather, as it is anywhere on this coast. Mid-July gives you the best odds of the year, but a westerly off the Bristol Channel can turn the flat bike into a slow grind out and a fast one back, and rain is never off the table.
For UK-based athletes the practical appeal is cost. Swansea is a drive rather than a flight for most of England and Wales, and the dock start means no ferry, no bike box, and no time zone.
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 Swansea?
- Date
- Sunday, 11 July 2027
- Format
- Half / 70.3
- Water temp
- 21°C · 70°F
Need to know
When is IRONMAN Swansea 2027?
IRONMAN Swansea takes place on Sunday, 11 July 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 Swansea?
Where does IRONMAN Swansea take place?
Swansea Bay, United Kingdom
When has IRONMAN Swansea taken place before?
FAQs
What do athletes ask about IRONMAN Swansea?
Where is IRONMAN Swansea held?
IRONMAN Swansea is held in IRONMAN 70.3 Swansea, the United Kingdom. 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 Swansea?
IRONMAN Swansea 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 Swansea?
The swim at IRONMAN Swansea 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 Swansea?
You enter IRONMAN Swansea 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 Swansea part of a race series?
Yes, IRONMAN Swansea 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 Swansea?
Training for IRONMAN Swansea 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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