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The Rock CF Thumb Coast Marathon, Half Marathon, and 5K is a half marathon running event held in Port Austin, MI on Nov 8, 2026. It is a Boston Marathon qualifier. The course offers a fast, PR-friendly route.
Trehko tracks registration status, entry fees, and deadlines for The Rock CF Thumb Coast Marathon, Half Marathon, and 5K and thousands of other endurance races. Use the app to set a registration reminder and build a training plan tailored to race day.
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