Sunday, November 8, 2026 · 8:00 AM · Port Austin, Michigan
Rock CF Thumb Coast Marathon, Half Marathon & 5K
The Rock CF Thumb Coast Marathon, Half Marathon & 5K is back on Sunday, November 8, 2026. This second year event offers a flat, fast, fully paved, USATF-certified course stretching across Michigan’s beautiful Lake Huron coastline. The Marathon is a Boston Qualifier, and both the Marathon and Half will include pace teams to help you hit your goals. Starting in Caseville and finishing in downtown Port Austin, this point-to-point race delivers the perfect combination of speed, scenery, and small-town charm. Whether you’re chasing a PR, running your first race, or planning a fall race-cation, the Rock CF Thumb Coast Marathon has it all.
- Time limit
- No time limit listed by the organizer
- Walkers
- Not mentioned — ask the organizer
- Terrain
- flat and fast
- Certified
- Yes
Pulled from the organizer's own race description — per the organizer, not independently verified.
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Source
Race details on this page come from RunSignup.
Race details can change and mistakes can be made. Always verify the race website for the most complete and accurate information. Report an error on this page.
Doability details — walkers welcome, time limit, terrain, and course certification — are read from the organizer's own description and haven't been independently verified.
Are you the race organizer, or did you spot something wrong?
Rock CF Thumb Coast Marathon, Half Marathon & 5K
Nov 8, 2026 · $29-$139.80