Overview:UFC 252: Miocic vs. Cormier 3 is a mixed martial arts event produced by the Ultimate Fighting Championship on August 15, 2020 at the UFC APEX facility in Las Vegas, Nevada, United States. A UFC Heavyweight Championship trilogy between current two-time champion Stipe Miocic and former champion Daniel Cormier (also former UFC Light Heavyweight Champion) took place as the event headliner.