Key takeaways
Jon Jones beat Thiago Santos by split decision after five rounds in the main event of UFC 239 at the T-Mobile Arena in Las Vegas. In the co-main event, Amanda Nunes beat Holly Holm by knockout at 4:10 of round one.
Across the twelve bouts that produced a result, four ended by knockout, two by submission and six on the judges' scorecards — six stoppages in twelve fights. One of the six decisions divided the judges.
The quickest finish belonged to Jorge Masvidal, who stopped Ben Askren after 5 seconds, and four of the six finishes came inside the opening round. The longest was Marlon Vera's submission of Nohelin Hernandez, 8 minutes and 25 seconds in. End to end, the twelve fights filled two hours and 3 minutes of cage time.
The main card finished at the higher rate: three of five, against three of the seven below it. Marlon Vera (submission, round two), Song Yadong (knockout, round one) and Edmen Shahbazyan (submission, round one) all closed before the judges were needed.
Four ranked fighters appeared.