Ironman 70.3 Michigan
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IRONMAN 70.3 Michigan - Frankfort, MI
IRONMAN 70.3 Michigan is scheduled for September 20, 2026, in Frankfort on the shores of Lake Michigan. The swim start and finish are both located next to the transition area on Betsie Bay. The bike course traverses historic highway M-22 and surrounding roads in Benzie County. The 13.1 mile run consists of two out-and-back loops on paved trails and roads.
Typical conditions listed for the event include a high air temperature of 52 °F / 17 °C, a low air temperature of 39 °F / 10 °C, and an average water temperature of 65 °F / 18 °C. The event has received multiple Athletes’ Choice Awards and rankings across recent years, including top placements for bike course and recommendation categories in North America and globally. The race sold out in 2024.
The setting is a small lakeside town with course sections along the lakeshore and a pier. Logistics mentioned in event materials include a nearby transition area at Betsie Bay and routed bike and run sections on public roads and paved trails in Benzie County. Visit the organization's website for the most recent information.