Rock CF Thumb Coast Marathon, Half Marathon, & 5K
Caseville, Michigan, United States
Nov 8, 2026 - Sunday
5k, Half-marathon, Marathon
Race Information
Fully paved, USATF Certified course on Michigan's Thumb Coast. 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, Michigan, this point-to-point course will travel east with a downtown finish in beautiful Port Austin, Michigan. The Full Marathon will start in Caseville and finish in Port Austin, whereas the Half Marathon will start in Sleeper State Park and finish at the same location in Port Austin. The 5K will be a loop around downtown Port Austin, featuring the same finish line as the Full and Half.
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👍 Run Pick of the Month: Crooked Lake Trail Run
📍 Independence Township, MI - May 9, 2026
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😄 Why We Like This Run
✅ Various options including 2.3 miles, 5k, or 10k
✅ Custom Dri-Fit Race Shirt, Finisher Medal, Race Bib, and Race Photos
✅ Post-race refreshments
Experience one of Michigan's most scenic trail races! The trails wind through the beautiful Independence County Oaks Park, featuring well-maintained two-track paths, rolling terrain, bridges, and stunning hardwood forests.
Whether you are a beginner runner or an experienced athlete seeking a challenge, there's a distance and course for you!
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Race Facts
Race Size: 500 - 1,000
Elevation: Fast and Flat
Course Type: Road
Boston Qualifier: No
Kids Run: No
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