Wasn't a KO but Pettis jumping off the cage to showtime kick Benson is up there.I haven't watched the fight since it happened but iirc (and it was a long time ago) I had it 2-2 going into the 5th with Benson edging the 5th till the kick,but maybe i'm wrong.Google mmadecisions to see how they had it but they don't show the official scores but I found this (which still doesn't say how the 5th was going but I think Bendo was up).
"All the judges' scorecards had it tied up 2-2 going into the fifth round. It was a super close fight," Henderson reflected. "It came down to it. Anthony let it all out, landed a pretty cool kick, and ever since I've been working to redeem myself."