Wisconsin
Wisconsin Triathlon Calendar 2025-2026
Explore the best triathlons in Wisconsin for 2025-2026! Our updated list features 10 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
September 2025
Fontana Triathlon on Geneva Lake is a historic multisport race held at Fontana Beach, Fontana, Wisconsin, with Lake Geneva providing a spectacular backdrop. The event offers Olympic and Sprint distanc..
Arise & Run 2025 is a family-friendly duathlon in Denmark, Wisconsin. The event offers multiple participation formats, including Individual, Two- and Three-Person Relay, and a free 1 Mile Fun Run/..
Raider Nation 5K Run / 2 Mile Run - Walk takes place in Kiel, Wisconsin, at Kiel High School. The 5K course starts on Raider Heights, goes west to Park Avenue, then Meggers Road with a U-turn at Fish..
The J-Hawk Latebird Race Series in Whitewater, Wisconsin, offers a variety of multi-sport events including Olympic, Sprint, and SuperSprint triathlons, duathlons, and AquaBike races. Held at UW-Whitew..
November 2025
Milwaukee Area Fall Frenzy (MAFF) Adventure Race is held at Lapham Peak State Park in Delafield, Wisconsin. The race offers three lengths—3, 8, and 18 hours—and uses a choose-your-own-adventure format..
April 2026
Stubborn Fool Adventure Race is a six-hour expedition-style event staged in Black River Falls, Wisconsin. The course blends biking and trekking/land navigation, with distances ranging from 12–35 miles..
June 2026
July 2026
The Oconto Falls Dri-Tri is a multi-sport event held in Oconto Falls, Wisconsin, featuring a scenic course that includes paddling, biking, and running. Participants start by paddling about half a mile..
September 2026
IRONMAN 70.3 Wisconsin is staged in Madison, Wisconsin. The course features a scenic 1.2-mile swim in Lake Monona, a 56-mile bike through rolling hills, and a 13.1-mile run along the Madison waterfron..
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