Key takeaways
Jon Jones beat Stipe Miocic by knockout at 4:29 of round three in the main event of UFC 309 at the Madison Square Garden in New York City. In the co-main event, Charles Oliveira beat Michael Chandler by unanimous decision after five rounds at lightweight.
Across the twelve bouts that produced a result, four ended by knockout, one by submission and seven on the judges' scorecards — five stoppages in twelve fights. Every decision was unanimous: not one result divided the judges.
The quickest finish belonged to Jim Miller, who stopped Damon Jackson at 2:44 of round one, and two of the five finishes came inside the opening round. The longest was Jon Jones's knockout of Stipe Miocic, 14 minutes and 29 seconds in. End to end, the twelve fights filled two hours and 36 minutes of cage time.
The preliminary card out-finished the main card: four of its seven results came early, against one of the five above it. Jim Miller (submission, round one), Marcin Tybura (knockout, round two) and Ramiz Brahimaj (knockout, round one) all closed before the judges were needed.
Eight ranked fighters appeared.
Seven weight classes were used, lightweight most often with three bouts.
