# Rock CF Thumb Coast Marathon, Half Marathon & 5K

- **When:** Sat, Nov 7, 2026 · 6:00 PM CST
- **Where:** 8774 Lake St. Port Austin, Port Austin, MI, 48467
- **Event page:** https://runthis.run/event/rs-172965-rock-cf-thumb-coast-marathon-half-marathon-5k

## Registration

Register on the event's own site: https://runsignup.com/Race/MI/PortAustin/TheRockCFThumbCoastMarathonHalfMarathonAndK?aflt_token=58wBqomPr6bPwa1YDhuKo0IQvrNCjzTq

## Description

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.

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Source: [https://runthis.run/event/rs-172965-rock-cf-thumb-coast-marathon-half-marathon-5k](https://runthis.run/event/rs-172965-rock-cf-thumb-coast-marathon-half-marathon-5k) — data from Run This (runthis.run).