IRONMAN 70.3 LouisvilleVerified
IRONMAN 70.3 Louisville: 91 km bike leg, 516 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
One 90 km loop: leaves Louisville along River Road, heads into the rolling horse-farm country of Oldham County, then returns to the riverside park. About 516 m of elevation gain. Mid-September in Kentucky is still on the hot side, and the farmland sections are open.
Source: Adapted from the official course description (the course page on ironman.com)
The terrain on this course
- Flat (±1.2%) makes up 65%
- Main climb 16.6–17.9 km: 44 m of gain (avg 3.5%)
- Main climb 35.2–36.0 km: 43 m of gain (avg 5.4%)
- Main climb 51.6–52.5 km: 34 m of gain (avg 4.3%)
Speed score
Rolling terrain is where you overspend without noticing: 20 extra watts on every little rise adds up and empties your legs for the back half. Let power touch the top of the range on the small stuff and leave it there.
Historical race-day weather (around 09-19): 19.9°C · Wind 1.2 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”.