Wisconsin
Wisconsin Triathlon Calendar 2026-2027
Monthly updates for Wisconsin
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Explore the best triathlons in Wisconsin for 2026-2027! Our updated list features 32 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
September 2026
An ultra triathlon at Ottawa Lake State Park in Dousman, Wisconsin offering formats from half distance to 1.5x and longer. Short repeat loops, an athlete village with personal crew access, and 24 hour medical support provide continuous on course assi..
A half-distance triathlon in Madison with a Lake Monona swim, a rolling hills bike course, and a waterfront run that finishes at the Wisconsin State Capitol. The 2026 edition lists average water and air temperatures and is a 2027 world championship q..
A multi-format triathlon at Fontana Beach on Geneva Lake offering Olympic, Sprint, relay, and collegiate sprint races. Events include lake swims, bike routes through rolling hills, and run courses through Fontana streets and parks.
A multi-sport event in Iola, WI on September 12, 2026, offering individual and 3 person relay options. The course features a 2 mile trail run, 7 mile gravel bike ride, and 2 mile paddle; participants must provide their own equipment.
A family friendly multisport fundraiser in Chippewa Falls featuring a triathlon, two 5K options, and a kids' mile. Proceeds support the Lori Kleich Foundation's work to expand access to functional medicine.
IRONMAN Wisconsin in Madison on September 13, 2026 features a lake swim, a rolling bike course and a hilly run that finishes by the state capitol. The race serves as a 2027 IRONMAN World Championship qualifier and draws large spectator crowds.
A sprint triathlon in Kewaskum on September 13, 2026 featuring a 5K run, a 2 mile kayak on the Milwaukee River and a 13 mile bike through Kettle Moraine. Individual and 2 to 3 person relay options are available plus a 1 mile youth run.
Rise & Run in Denmark, WI combines a run-bike-run duathlon with individual and two or three person relays plus a free one mile fun run where leashed dogs and strollers are allowed; proceeds support Arise missions.
A triathlon at Devil's Lake in Baraboo, Wisconsin on September 20, 2026, offering sprint individual, sprint relay, and a Wisconsin Triathlon Series entry. Distances include a 400 m swim, a 15 mile bike, and a 5K run.
A multi-format community event at Kiel High School featuring full and short sprint triathlons, aquabike options, team relays, a Kid's Triathlon, and a 100 yard Raider Dash, with concessions on site and proceeds to the Kiel High School Booster Club.
Single day multi-format races at UW-Whitewater featuring triathlon, duathlon and aquabike distances. Online only registration, relay options, a new youth supersprint award and limited Olympic entries.
November 2026
An indoor triathlon at the RecPlex combining a timed swim, spin bike, and treadmill run with equal-weight scoring, medals for finishers, and a $40 online registration fee; wave assignments and swim-lane details are provided before race day.