IRONMAN Western Australia
IRONMAN Western Australia runs at Busselton on 6 December 2026 with both the full distance and the half. The swim goes out around the Busselton Jetty, one of the longest timber piers anywhere, which gives you a fixed landmark to sight off for most of the way.
The 180 km bike is flat and fast, along the coast and through bushland, and the marathon passes the jetty again on each lap. This is a course with a reputation for personal bests, and the reason is that almost nothing on it slows you down involuntarily.
The wind does. An afternoon sea breeze is a regular feature on this coast and it arrives while the field is still riding. Busselton is around two and a half hours south of Perth by road, so factor in the drive and, if you are chasing a fast day, the jet lag that comes with getting to Western Australia at all.
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 Western Australia?
- Date
- Sunday, 6 December 2026
- Format
- Full Distance / 140.6 · Half / 70.3
- Water temp
- 21.1°C · 70°F
Need to know
When is IRONMAN Western Australia 2026?
IRONMAN Western Australia takes place on Sunday, 6 December 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 Western Australia?
Where does IRONMAN Western Australia take place?
Busselton, Australia
FAQs
What do athletes ask about IRONMAN Western Australia?
Where is IRONMAN Western Australia held?
IRONMAN Western Australia is held in Busselton, Australia. 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 Western Australia?
IRONMAN Western Australia offers Full Distance / 140.6 and Half / 70.3. The Full Distance / 140.6 is a 3.8 km swim, 180 km bike and 42.2 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 Western Australia?
IRONMAN Western Australia 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 Western Australia?
The swim at IRONMAN Western Australia is around 21.1°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 Western Australia?
You enter IRONMAN Western Australia 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 Western Australia part of a race series?
Yes, IRONMAN Western Australia 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 Western Australia?
Training for IRONMAN Western Australia depends on your target distance and current fitness. Most athletes follow a structured block of 12–20 weeks for a Full Distance / 140.6 effort. Build a plan tailored to your race date and level with AI Training Plan (https://aitrainingplan.app).
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