Sunday, November 2

The Rock Cf Thumb Coast Marathon, Half Marathon And 5k

Experience the ultimate race adventure at The Rock CF Thumb Coast Marathon, Half Marathon, and 5K on November 2, 2025, organized by Trivium Racing in the scenic town of Port Austin, Huron. With a flat and fast course boasting breathtaking views of Lake Huron, runners of all levels are invited to partake in this unforgettable event. The Full Marathon starts in downtown Caseville, leading participants to a vibrant finish in Port Austin, while the Half Marathon kicks off at Sleeper State Park, culminating in the charming downtown area. For a shorter challenge, the 5K offers a delightful loop around downtown Port Austin, all ending at the same celebratory finish line. Not only can you achieve your personal best, but your participation also supports the Rock CF Foundation's mission to help those living with cystic fibrosis nationwide. Stay tuned for course maps and get ready for a day filled with community camaraderie and inspirational determination!