Vitor Belfort Leads All-Time UFC First-Round Knockout List With 11

Vitor Belfort holds the record for most first-round knockouts in UFC history with 11, ahead of Anthony Johnson (9) and Michal Oleksiejczuk (8). Sergei Pavlovich, Francis Ngannou, Andrei Arlovski, Cain Velasquez, Anderson Silva, and Derrick Lewis each have seven first-round knockouts in the promotion.