IRONMAN Western Australia · BusseltonVerified
IRONMAN Western Australia · Busselton: 180 km bike leg, 104 m of climbing. Elevation profile, what the terrain asks of you, the weather this race day usually brings, and how to pace this course.
Course intel
Completely flat course in Busselton, Western Australia, straight roads through the Tuart Forest and along the coast, 334 m of elevation gain. In December the afternoon sea breeze arrives on schedule; factor the difference in wind direction between the out and back legs into your plan.
Source: Compiled from the official route and public race information · every course rechecked before launch
The terrain on this course
- Flat (±1.2%) makes up 99%
- No significant climbing: what matters is handling the wind and holding your power steady
Speed score
The wind here is part of the terrain: ride the headwind sections to your range, not to the speedometer, and in crosswinds relax your upper body and stay low. The plan already has wind in every segment, so just ride the numbers.
Historical race-day weather (around 12-07): 23.1°C · Wind 4.4 m/s
0 to 100, and the higher it is the easier it is to post a good time. Points come off for terrain, for corners, and for the heat and wind this race has actually had over the last five years at the same time of year. Full explanation in the article “How the course score works”.