IRONMAN 70.3 Western MassachusettsVerified
IRONMAN 70.3 Western Massachusetts: 91 km bike leg, 665 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
From downtown Springfield west into the New England countryside; the revised course has fewer turns and smoother roads, with gentle climbs alternating with descents. About 665 m of elevation gain, and early June in Massachusetts is cool and pleasant.
Source: Adapted from the official course description (the course page on ironman.com)
The terrain on this course
- Flat (±1.2%) makes up 56%
- Main climb 31.3–32.3 km: 40 m of gain (avg 4.0%)
- Main climb 38.3–41.0 km: 90 m of gain (avg 3.4%)
- Main climb 80.5–81.3 km: 32 m of gain (avg 3.9%)
Speed score
There is a climb longer than 2 km out there: go in at an intensity you can hold to the top, and only add past halfway if you feel good. Riders who go hard from the bottom mostly bleed speed in the back half.
Historical race-day weather (around 06-07): 18.6°C · Wind 2.0 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”.