IRONMAN UK · Bolton
IRONMAN UK · Bolton: 180 km bike leg, 1770 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
Loop through the Bolton countryside with one short steep climb after another (Sheep House Lane is the famous one), 1800 m total elevation gain. July in England is wet; back off on the descents when the road is slick.
Source: Compiled from the official route and public race information · every course rechecked before launch
The terrain on this course
- This race has been discontinued; the route is kept for reference
- Flat (±1.2%) makes up 43%
- Main climb 25.1–29.0 km: 192 m of gain (avg 4.9%)
- Main climb 76.0–80.0 km: 191 m of gain (avg 4.8%)
- Main climb 127.0–130.8 km: 191 m of gain (avg 4.9%)
Speed score
On a climb-heavy course, few people lose to the hills; most lose to attacking them. Hold your range going up, relax and recover going down, and save your legs for the run.
Historical race-day weather (around 07-06): 16.5°C · Wind 5.1 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”.