Wisconsin
Wisconsin Triathlon Calendar 2026-2027
Monthly updates for Wisconsin
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Wisconsin for 2026-2027! Our updated list features 25 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
September 2026
Multi day ANVIL ultra triathlons at Ottawa Lake State Park with looped course, on course aid village, personal crew access and 24 hour medical support.
IRONMAN 70.3 Wisconsin is a 70.3-mile triathlon in Madison featuring a swim in Lake Monona, a rolling bike course and a waterfront run finishing by the State Capitol.
Triathlon in Fontana, WI with Olympic and Sprint distances plus relays; swim in Geneva Lake, bike through local hills, and run on streets and parks.
A multi-discipline event in Iola WI on September 12, 2026 featuring a 2 mile trail run, 7 mile gravel bike leg, and a 2 mile paddle.
A nonprofit fundraiser in Chippewa Falls featuring a triathlon with run bike and paddle legs, two 5K options, and a children’s one mile loop, with kayak and canoe rentals available first come first served.
Monthly updates for Wisconsin
Get new running races (and updates) in your inbox every month.
IRONMAN Wisconsin in Madison is an IRONMAN triathlon with a lake swim, rolling bike, hilly run and a Capitol finish, noted for strong spectator support.
Sprint triathlon in Kewaskum featuring a 5K run, 2 mile kayak, and 13 mile bike ride, with relay teams and a 1 mile youth run option.
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.
Multi-discipline race day at UW Whitewater with Olympic, Sprint, Super Sprint, duathlon, and aquabike options plus relay and youth awards.
November 2026
An adventure race around Lapham Peak State Park with three timed options, 3, 8, and 18 hours, featuring paddling, trekking, biking and checkpoint navigation.
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.
December 2026
A winter map-and-compass adventure race in Merrill, WI on December 5, 2026 with 3-hour and 6-hour formats for solo racers and teams.
May 2027
An adventure race near Rib Mountain, WI offering 3 hour, 8 hour, and 18 hour courses of trekking, biking, paddling, and navigation for solo and team divisions.
June 2027
Triathlon at Sandy Beach Park in Lake Mills on June 6, 2027, featuring sprint individual and relay races plus a Wisconsin Triathlon Series entry.
Timed 24- and 36-hour solo or team triathlon relays on Washington Island featuring a 0.25 mi swim, 9.91 mi bike loop and 2.0 mi run around Gislason Beach.
A triathlon in Verona, Wisconsin on June 26 2027 offering sprint and Olympic distances with individual, relay, and series entry options.
A multi-format triathlon and duathlon at Pleasant Prairie RecPlex and Prairie Springs Park on 27 June 2027 featuring sprint and Olympic distances, relays, a para sprint, collegiate races, and a charity team option.
July 2027
Pardeeville Triathlon on 07/10/2027 at Chandler Park features a 400 m swim, 15 mile bike and 5 km run with individual, relay and series entry options.