Lake Country Triathlon

Lake Country Triathlon : July 25, 2026, Oconomowoc, WI

The Lake Country Triathlon takes place on July 25, 2026 in downtown Oconomowoc at City Beach on Lac la Belle (304 W. Wisconsin Ave). The event includes the following race options: Sprint, Olympic, Half Iron, Sprint Relay, Olympic Relay, and Half Iron Relay. All finishers receive a custom finisher medal, race bib, and finisher shirt. Shirts are gender specific, dry-wick, and registrations completed before July 10 are guaranteed a custom shirt; female shirts run small. Registration for 2026 is open.

Course, logistics and rules

The swim is in Lac la Belle, starting at City Beach, with Sprint athletes completing one clockwise lap and Olympic and Half Iron athletes completing two clockwise laps around designated buoys. Water temperature rules apply for wetsuit use: below 78°F wetsuits ok; 78–83.9°F wetsuits permitted but may affect award eligibility; 84°F and above wetsuits are discouraged. The bike course runs through the rolling ground moraine northwest of Oconomowoc with course splits at about mile 7 and mile 15 and a reconnection near Branch Rd. Half Iron cyclists pass aid stations near miles 17 and 41 that provide water, Gatorade, and a bathroom; there is no aid station on the Olympic or Sprint bike courses. The run is an out-and-back along Wisconsin Avenue and the southern shore of Lac la Belle; Sprint turn is at mile 1.55, Olympic at mile 3.1, and Half Iron runners complete two out-and-backs. Transition is staged and secured overnight the night before; athletes must be body marked and display their bib to enter transition. Race rules require wearing the timing chip, wearing a bike helmet during the bike, no headphones on bike or swim, and no drafting on the bike course. Visit the organization's website for the most recent information.

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