In 36 days · Sun, Nov 8, 2026
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Sunday, November 8th, 2026
8774 Lake St. Port Austin, Port Austin MI
Marathon · Half · 5K
38–49°F · some rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
35–42°F
dry
2024
45–54°F
dry
2023
36–40°F
rain
2022
38–47°F
dry
2021
46–60°F
dry
2020
51–71°F
dry
2019
26–31°F
dry
2018
35–39°F
dry
2017
30–42°F
dry
2016
49–55°F
dry
Best months to race in Michigan →
Typical start here is 38°F — see the cold-start kit →
About this race
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.
Event Details
- Date: November 8, 2026
- Location: 8774 Lake St. Port Austin, Port Austin, MI
- Course Type: Flat, fast, fully paved, USATF-certified
- Starting Point: Caseville
Race Offerings
- Marathon: Boston Qualifier
- Half Marathon: Includes pace teams
- 5K: Suitable for all levels
- Scenic Route: Across Lake Huron coastline
Registration
For more details and to register, please visit the official race website.
Course map
Train with a club
Run clubs near Port Austin to train with before race day.
See all run clubs near Port Austin →Suggested Races
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