The Cape Cod Marathon is a USATF‑certified, Boston‑qualifying road marathon held in Falmouth, Massachusetts, that starts and finishes at Mullen Hall School. The coastal course follows the shoreline of Nantucket Sound with expansive views of Martha’s Vineyard and a relatively fast, seaside profile. The event is known for its intimate, well-supported field, the weekend Clam Chowdah Challenge (running both the half and full), and finish‑line traditions such as hot chowder, cider donuts, and live music.