Thumb Coast Half Marathon
Race Day Weather
Cold start — layer up
Runners will start in chilly 38°F conditions — dress in layers for the corral and plan to shed early. Temperatures rising to 47°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 69% is worth noting for effort level, especially in later miles.
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Race Info
The half marathon is a point-to-point course that starts at Sleeper State Park off M-25 and runs east along the Saginaw Bay shoreline of Lake Huron to Port Austin. The course is fully paved and USATF-certified. It finishes in downtown Port Austin on the Lake Huron Circle Tour, between State and Railroad streets, at the same finish as the marathon and 5K.