Wisconsin
Wisconsin Triathlon Calendar 2025-2026
Explore the best triathlons in Wisconsin for 2025-2026! Our updated list features 15 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
November 2025
Milwaukee Area Fall Frenzy at Lapham Peak State Park in Delafield on Nov 1 is a choose your own adventure across the Kettle Moraine. Teams or solo racers will paddle, trek and bike in 3 hour, 8 hour or 18 hour formats for a strategic outdoor challeng..
February 2026
Take on a fast paced indoor triathlon at WAC in Greenfield. Short timed swim, spin and treadmill stages with waves of eight, prizes and postrace refreshments offer a fun winter challenge for ages 12 to 100.
April 2026
Join the Stubborn Fool, a 6 hour adventure race in Black River Falls, WI on April 11, 2026. Teams and solo racers bike and navigate varied terrain, then enjoy post race food, prizes and giveaways.
May 2026
Explore Wyalusing State Park at the Waddling Warriors Adventure Race in Bagley, Wisconsin on May 2, 2026, with biking, paddling and trekking across rugged terrain. Teams or solo racers navigate by map and compass and enjoy dorm lodging plus a catered..
June 2026
Kick off summer with the Lake Mills Triathlon, the opening race of the Wisconsin Triathlon Series on June 7 in Lake Mills, WI. This sprint tri features a 400 meter swim, 16 mile bike and 5K run plus a race shirt, medal and pro timing.
Challenge yourself at the Duck Creek Triathlon on June 28, 2026 at Duck Creek Quarry Park in Howard WI. This fully supported sprint offers a swim, a refreshed bike route and a run that finishes at the post race party. Spots capped at 400.
July 2026
Join the Oconto Falls Dri Tri at West Side Beach for a paddle, bike and 5K run or walk that challenges and delights. Rentals available, medals for all, and post race food with proceeds supporting local health and wellness.
Race the Door County Double Door Triathlon in Egg Harbor, WI on July 11 to 12, 2026. Swim, bike and run along sandy shores and bluffs with sprint, Olympic, Double Door and kids races, then enjoy local food and shops.
Join the 18th Triing for A Cure Triathlon on July 26 at Ottawa Lake State Park in Kettle Moraine Forest for sprint and Olympic distances and relay entries. Enjoy scenic lake swims, bike roads and finish swag with photos.
September 2026
Take on IRONMAN 70.3 Wisconsin in Madison on September 12, 2026, with a Lake Monona swim, rolling bike and a scenic hilly run finishing by the State Capitol. Enjoy a lively race day vibe with spectators, VIP options and local flavor.
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