IRONMAN 70.3 Wisconsin 2026

IRONMAN 70.3 Wisconsin is a middle-distance triathlon held in Madison, Wisconsin, as part of the IRONMAN 70.3 series. Competitors swim 1.2 miles, cycle 56 miles, and complete a 13.1-mile run. The event is managed by World Triathlon Corporation, the entity behind the IRONMAN brand, adhering to the standard half-Ironman structure instead of a local short-course format. The course is centered in Madison, featuring a finish line within the city and routes that traverse city streets and extend toward the surrounding lakes. This location offers participants a blend of urban Madison and the nearby lake regions. Landmarks such as the Wisconsin State Capitol, Olbrich Botanical Gardens, and the Chazen Museum of Art are accessible for those extending their visit for the race weekend. The event attracts endurance athletes seeking the complete triathlon challenge but not the full 140.6-mile Ironman distance.