Key takeaways
Conor McGregor beat Chad Mendes by knockout at 4:57 of round two in the main event of UFC 189 at the MGM Grand Garden Arena in Las Vegas. In the co-main event, Robbie Lawler beat Rory MacDonald by knockout at 1:00 of round five.
Across the eleven bouts that produced a result, four ended by knockout, two by submission and five on the judges' scorecards — six stoppages in eleven fights. One of the five decisions divided the judges.
The quickest finish belonged to Gunnar Nelson, who stopped Brandon Thatch at 2:54 of round one, and two of the six finishes came inside the opening round. The longest was Robbie Lawler's knockout of Rory MacDonald, 21 minutes and 0 seconds in. End to end, the eleven fights filled two hours and 10 minutes of cage time.
The main card finished at the higher rate: five of five, against one of the six below it. Matt Brown (submission, round one) all closed before the judges were needed.