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
Swim 1.2 Miles Run 13.1 Miles Bike 56 Miles

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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.

13 mi
Run 13.1 Miles
Swim 1.2 Miles
Bike 56 Miles

Events nearby

Join the Wisconsin Triterium Triathlon in Verona on June 27, 2026 for sprint and Olympic distance races on a multi loop course at Fireman's Park. Expect a finisher medal, event tee, wave colored swim cap, pro timing, free photos and post race food.
Train on Ironman Wisconsin and 70.3 swim bike and run courses with C26 coaches in Madison, July 30 to August 2 2026. Several days of coached sessions, open water swims, guided rides and team meals to sharpen race readiness.
Take on the Sugar River Triathlon in Belleville WI on August 23, 2026 with a 1/4 mile swim, 16 mile bike and 5K run through rolling hills and gravel trails. Open to solo racers and relays with timing, finisher medal and race shirt included.