Vitor Belfort Leads All-Time UFC Record With 11 First-Round Knockouts

Vitor Belfort holds the all-time UFC record for first-round knockouts with 11, according to historical fight data. Anthony Johnson is second with nine, followed by Michal Oleksiejczuk with eight, and a group of fighters including Sergei Pavlovich, Francis Ngannou, Andrei Arlovski, Cain Velasquez, Anderson Silva, and Derrick Lewis each with seven.