2025 - The Rock CF Thumb Coast Marathon, Half Marathon, and 5K
2025 distances
Running
Marathon
Economy Marathon
This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
Half Marathon
Economy Half Marathon
This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
5K
Economy 5k
This option is for those that want a great race, but not a race sweatshirt or finisher's medal.
Virtual Marathon
Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.
Virtual Half Marathon
Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.
Virtual 5k
Select the Virtual Race option and complete the race distance on your own time. Packets will be mailed.
Race date Weather
Conditions on November 2, 2025 — historical Open-Meteo data.
About Port Austin
The Rock CF Thumb Coast Marathon, Half Marathon, and 5K takes place in Port Austin, Michigan, United States. The local timezone is America/Detroit.
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🏃 Plan Your Next Race in Port Austin
Find upcoming events by distance:
- Port Austin Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.