Ironman Wisconsin
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About the race
IRONMAN Wisconsin is a full distance triathlon held in Madison, Wisconsin, United States on September 13, 2026. The course combines an open lake swim, a rolling bike course, and a hilly run that finishes in the area of the Wisconsin State Capitol.
The event route includes a notable transition through the Helix, a bike segment linked with the Verona Festival, and a downtown run that passes through Camp Randall Stadium. Average conditions noted on the event page list an average water temperature of 70°F / 21°C, a typical high air temperature of 77°F / 25°C, and a typical low of 56°F / 13°C.
IRONMAN Wisconsin is described as one of the longest standing IRONMAN races in North America. The race is the first North American qualifier for the 2027 IRONMAN World Championship. Post-event athlete surveys placed the race in multiple Athletes’ Choice Award categories, ranked #2 Best Swim, #3 Most Recommended, #4 Best Race, #5 Best Bike, and #5 Best Run.
Registration for the event is listed as open. Event materials and athlete resources include a detailed course overview, event schedule, pre race information, and a results archive. Visit the organization's website for the most recent information.
