Lake Geneva
Triathlon Calendar near Lake Geneva 2026-2027
Monthly updates for Lake Geneva
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Explore the top triathlons near Lake Geneva for 2026-2027! We've gathered 7 exciting races in the area. Check out our detailed list below to find your next local race.
July 2026
A multi-distance aquathon at Three Oaks Recreation Area on July 19, 2026, featuring timed swim-and-run options, a kids race, and an adaptive swim. Proceeds benefit Girls on the Run Northwest Illinois.
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.
Wauconda Triathlons offers adult Olympic and sprint races plus a kids race in Wauconda. It is part of the Lake County sprint series and provides course maps, elevation profiles, transition maps, and past race results.
September 2026
A multi-day ultra triathlon at Ottawa Lake State Park in Dousman, Wisconsin. Short loop courses provide constant support with an Aid Station and Athlete Village, personal crew access, and a 24-hour on-site medical team.
A multi-format triathlon at Fontana Beach on Geneva Lake offering Olympic, Sprint, relay, and collegiate sprint races. Events include lake swims, bike routes through rolling hills, and run courses through Fontana streets and parks.
Single day multi-format races at UW-Whitewater featuring triathlon, duathlon and aquabike distances. Online only registration, relay options, a new youth supersprint award and limited Olympic entries.
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.