UFC Fight Night 203: Santos vs. Ankalaev: UFC Fight Night 203: Santos vs. Ankalaev was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on March 12, 2022 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A light heavyweight bout between former UFC Light Heavyweight Championship challenger Thiago Santos and Magomed Ankalaev served as the event headliner.