Classic Midwest racing: warm lake swim, relentless rolling farm roads and a run through downtown Madison past the Capitol dome.
1.9 km swim in Lake Monona in the heart of Madison, warm and calm in early September.
Rolling one-lap 90 km bike through the drumlin farmland west of the city on the classic Wisconsin rollers.
Two-lap 21.1 km run around the isthmus, past the State Capitol and along the lakeshore paths.
Actual monthly averages from the last 3 years (Open-Meteo). Real race day may vary.
Water temp uses athlete-reported values first, then official race data, then the marine archive (sea swims, measured at the nearest offshore point). Values tagged est. are modelled from recent air temperature for lakes and rivers, where no observational data exists.
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