Fernando Diaz‑Marquez is an undefeated amateur MMA fighter from Half Moon Bay, California, currently boasting a 6‑0 record in the featherweight division. His pro­vocative debut came at Daly City’s Cow Palace in August 2023, where he earned a unanimous decision victory to kick off his career. Since then, he’s claimed five straight wins—including stoppages via TKO and submission—training under Raul Castillo Martial Arts and rising rapidly in California’s amateur rankings