The Rock CF Thumb Coast Marathon, Half Marathon and 5K

🏃‍♂️ The Race Overview

The Rock CF Foundation and Trivium Racing are excited to bring to life the Thumb Coast Marathon: a flat, fast course featuring stunning views of Lake Huron. Starting in historic downtown Caseville, this point-to-point course will travel east with a downtown finish in beautiful Port Austin.

💖 Support a Cause

Your experience at this coastal marathon goes beyond just your own personal goals, as proceeds from this event go directly towards the Rock CF Foundation’s mission to support those living with cystic fibrosis around the country.

📏 Race Distances

• Full Marathon: Starts in Caseville and finishes in Port Austin.
• Half Marathon: Starts in Sleeper State Park and finishes at the same location in Port Austin.
• 5K: A loop around downtown Port Austin, featuring the same finish line as the Full and Half.
• Maps: Detailed maps of all courses will be posted soon.

📅 Event Details

Date: 2025-11-02
Location: 8774 Lake St. Port Austin, Port Austin, MI
For more information, visit the official race page: The Rock CF Thumb Coast Marathon.