Ironman Western Australia: the bike course and how to prepare it
- Distance
- 181 km
- Climbing
- 282 m
- Highest point
- 18 m
- Categorised climbs
- None
- Shape
- Loop
Measured on the course you ride in Cycloscape. The organiser's own figures are below.
Elevation profile
3–18 m · 0 categorised climbsIronman Western Australia is a full-distance IRONMAN triathlon — 3.8 km swim, 180 km bike, 42.2 km run — in Busselton, Australia. The next edition is on 6 December 2026, according to IRONMAN. The bike leg is two fast, flat laps from Busselton, along the coast and into the Tuart Forest.
Ironman Western Australia at a glance
- Where
- Busselton, Australia
- Official race page
- ironman.com ↗
- Next edition
- 6 December 2026
- Distances
- 3.8 km swim · 180 km bike · 42.2 km run
- Bike course
- 180 km
- Terrain
- Rolling to flat
- Facts checked
- 5 November 2026, against the sources below
Full preparation and course training require Event Coach Pro.
Ride the real course on your trainer. The route of Ironman Western Australia, 181 km, as a 3D world, with your trainer following its gradients — any day, and as part of your Event Coach plan. Part of Cycloscape Pro.
The bike course
Ironman Western Australia is a full-distance triathlon: 3.8 km swim, 180 km bike, 42.2 km run.
| Leg | Distance | Climbing |
|---|---|---|
| Bike leg (two laps) | 180 km | — |
What the bike leg asks of you
A course for speed: stay aero, ride steady and fuel from the start.
How to prepare the bike leg
The general shape of a good bike preparation, which Event Coach turns into a plan for your fitness, time and date:
- Train long, steady power: the 180 km of Ironman Western Australia are ridden well below threshold — most age-groupers hold around two-thirds to three-quarters of their FTP — so the marathon is still possible.
- Ride your long sessions in the position you will race in, and practise eating and drinking on the bike: on race day you fuel the run on the bike.
- Add short runs straight after some long rides (brick sessions), planned around your bike training — Event Coach prepares the bike; your swim and run are yours to fit around it.
Pacing mistakes to avoid
The mistakes that cost triathletes the most on the bike:
- Riding the first hour of Ironman Western Australia on adrenaline: the watts you spend early come back as minutes lost on the run.
- Surging on every hill and every overtake instead of holding an even power.
- Under-eating on the bike: the energy for the run has to go in before you get off it.
Prepare the bike leg of Ironman Western Australia with Cycloscape
Tell Event Coach you are racing Ironman Western Australia and it builds the bike side of your preparation towards 6 December 2026: structured workouts held by your trainer in ERG, pacing for the course and Performance Lab to see whether the work is landing. Swimming and running are not part of the plan. Full preparation and course training require Event Coach Pro.
Frequently asked
When is Ironman Western Australia 2026?
On Sunday, 6 December 2026, according to the organiser.
How long is the bike course of Ironman Western Australia?
180 km. The bike leg as IRONMAN describes its course (two laps).
Does Event Coach plan my swimming and running?
No. It prepares the bike leg — workouts, pacing and the course — and tells you where to fit short runs after long rides. Plan your swim and run with your own coach or programme.
Can I ride the bike course of Ironman Western Australia in Cycloscape?
Yes, inside Event Coach with Cycloscape Pro: the bike course is ridden on your trainer as part of your preparation. It is never a free or standalone ride.