Thumb Coast Marathon
Race Day Weather
Cool start, steady conditions
Runners will face a temperature rise from 37°F to 47°F with a consistent wind from the WSW at 10 mph, gusting to 21 mph. Humidity will be 69% with a dew point of 34°F, making conditions feel cool but manageable. Runners should consider a conservative start to gauge their pace as temperatures rise.
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Race Info
This event offers a flat, fast, USATF-certified course stretching across Michigan’s Thumb. The Marathon is a Boston Qualifier, and both the Marathon and Half will include pace teams from Beast Pacing to help you stay on track. Starting in Caseville and finishing in downtown Port Austin, this point-to-point race combines speed, scenery, and small-town charm—making it the perfect fall race-cation. Source