Key takeaways
Kamaru Usman beat Gilbert Burns by knockout at 0:34 of round three in the main event of UFC 258 at the UFC Apex in Las Vegas. In the co-main event, Alexa Grasso beat Maycee Barber, the division's No. 6, by unanimous decision after three rounds.
Across the ten bouts that produced a result, one ended by knockout, three by submission and six on the judges' scorecards — four stoppages in ten fights. Every decision was unanimous: not one result divided the judges.
The quickest finish belonged to Polyana Viana, who stopped Mallory Martin at 3:18 of round one, and one of the four finishes came inside the opening round. The longest was Julian Marquez's submission of Maki Pitolo, 14 minutes and 17 seconds in. End to end, the ten fights filled two hours and 5 minutes of cage time.
The main card finished at the higher rate: two of five, against two of the five below it. Anthony Hernandez (submission, round two) and Polyana Viana (submission, round one) all closed before the judges were needed.
Five ranked fighters appeared, and three of them were in the top two bouts.