The Wisconsin Triathlon Series is an annual series of seven races held throughout Wisconsin during the spring and summer months. All races in the series offer sprint distance, while the Wisconsin Triterium, Green Lake and Tri-ing for A Cure Triathlons also offer an Olympic distance. Whether you are new to triathlons or have been doing them for years, we have a race that suits you!

The Green Lake Triathlon — race number four of the Wisconsin Tri Series — combines the rich history of the Green Lake area and the beautiful downtown area to attract racers from all over the Midwest. The course includes a calm and protected lake swim, rolling hills on the bike, and run along the lake making this triathlon perfect for beginners to veterans. Now heading into our 26th year, we continue to provide a fun race for all.