Vitor Belfort Leads UFC's All-Time First-Round Knockout List with 11

Vitor Belfort holds the UFC record for most first-round knockouts with 11, ahead of Anthony Johnson's nine and Michal Oleksiejczuk's eight. Sergei Pavlovich, Francis Ngannou, Andrei Arlovski, Cain Velasquez, Anderson Silva, and Derrick Lewis each have seven first-round knockouts in the promotion.