IRONMAN 70.3 Wisconsin

SEP
12
2026
IRONMAN 70.3 Wisconsin in Madison blends a Lake Monona swim, rolling hills bike and a waterfront run that finishes beneath the Wisconsin State Capitol. Held September 12 2026, this race is a qualifier for the 2027 IRONMAN 70.3 World Championship.
Sat 12 Sep 2026

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

IRONMAN 70.3 Wisconsin is scheduled for September 12, 2026, in Madison, Wisconsin, United States. The half-distance triathlon covers 70.3 miles and is organized by IRONMAN. The course includes a swim in Lake Monona, a bike course described as rolling hills, and a run along the Madison waterfront with the Wisconsin State Capitol forming the backdrop for the finish area. The event is listed as Flex90 eligible and serves as a qualifier for the 2027 IRONMAN 70.3 World Championship.

Location, conditions and onsite services

The event location is Madison, WI (1 John Nolen Dr.). Reported average water temperature is 75°F (24°C). Reported air temperatures include a high of 52°F (17°C) and a low of 34°F (7°C). An official onsite service partner, PLAYTRI, is listed as the event’s triathlon store and mechanic team. PLAYTRI’s services for the event include bike rentals and maintenance, with offered items and prices such as Tri Bike Rental Level 1 ($699), Tri Bike Rental Level 2 ($549), Road Bike Rental Level 3 ($399), Bike Build & Pack Package ($349), Bike Build ($199), Race Ready Tune Up ($125), and damage waiver tiers ($150, $100, $75). Some service registrations show closing dates in early September 2026. Visit the organization's website for the most recent information.

Events nearby

Race the Wisconsin Triterium Triathlon in Verona, featuring multi loop sprint and Olympic distances at Fireman's Park. Part of the seven race Wisconsin Triathlon Series, with relay and individual entries, pro timing, swag, and digital photos.
Train on the official Ironman Wisconsin and 70.3 courses at the C26 Triathlon Camp in Madison, July 30 to August 2, 2026. Coaches lead open water swims, coached rides, brick sessions and team meals for all levels.
Challenge yourself at the Sugar River Sprint Triathlon in Belleville on August 23, 2026 with a Lake Belle View swim, rolling 16 mile bike and a 5 km run on gravel trails. Finishers receive a tech tee, medal, pro timing and free photos.