A slightly slower-than-average full distance: about 19 minutes more for a 10:00 athlete. The bike costs the most, the swim a little, the run nothing.
Course +3.1%Hard bikeA full-distance race in Madison, United States, with a bike leg that runs slower than average and a field that is almost entirely domestic.
The bike is the leg that defines the course: it costs a 10:00 athlete about 32 minutes against an average course. The swim adds about 17 minutes for the same athlete, and the run is close to average at about 2 minutes. Overall the course costs a 10:00 athlete around 19 minutes.
The race is held in September, when daily mean air temperature is typically around 19°C with highs near 24°C. The latest edition had around 1,500 starters, and about 7% did not finish. About 7% of the field came from abroad, mostly from Canada.
Suits athletes who plan for a slower-than-average bike and can pace a long ride in mild autumn conditions. A good fit for those who want a mostly North American field.
Finish-time ladder of the 2026 edition
Same athletes, this course against their other races · 741 athletes
What it took in 2026
Based on the 2026 edition · 1,463 starters · Official IRONMAN results, aggregated by Enduric. Enduric is not affiliated with IRONMAN. Updated 11 Nov 2026.
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