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 34 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
July 2026
A multi format triathlon at Ottawa Lake State Park on July 26, 2026 offering sprint and Olympic distances as individual and relay events, plus a Wisconsin Triathlon Series entry; published fees and registration dates are provided.
August 2026
A women's multisport event on August 9, 2026, in Pleasant Prairie, WI offering sprint triathlon, duathlon, relay and para sprint options. Registration runs November 17 to December 1, 2025, with fees from $95 to $190.
Waupaca Area Triathlon is a multi format weekend at Shadow Lake and downtown Waupaca on August 14 to 15, 2026. Events include swim bike run races, paddling options, youth and kids races, and relay entries.
A sprint triathlon in Cable, Wisconsin on August 15, 2026 featuring a 750 meter swim, a 12 mile bike and a 5 kilometer run. Individual and relay divisions are offered and the event supports the planned Telemark Activity Center.
A sprint triathlon at Belleville Community Park on August 23, 2026, with individual, relay and series entries. Distances include a 400 m swim, a 16 mile bike and a 5 km run.
Experience the excitement of the Bell Swim Run Festival at Atwater Beach. This multi sport event features swimming and running segments across three distinct age categories on the scenic Lake Michigan shoreline.
September 2026
An ultra triathlon at Ottawa Lake State Park in Dousman, WI on September 9, 2026. Short repeat loops allow personal crew access each lap and on course aid, with a 24 hour medical team and event support services.
Experience a historic multisport race at Fontana Beach with swim legs in Geneva Lake and cycling through rolling hills. Choose between Olympic and Sprint distances for both individuals and relay teams in this scenic Wisconsin setting.
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.
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.