#2 UFC 202 (1.65 million buys)

UFC 196 was such a monumental financial success for UFC, that it was inevitable that the company would book a re-match.
However, it was a surprise when UFC managed to get the fight signed just a few short months after their UFC 196 encounter.
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It was the most heavily hyped re-match in UFC history. "Notorious" Conor McGregor versus Nate Dias; the man who had inflicted McGregor's first UFC defeat on him several months earlier at UFC 196.
McGregor's performance in the headliner is among the best if not the best of his entire career as he demonstrated hugely improved conditioning to go the distance in the longest fight of his career.
The fight was a topsy-turvy contest with McGregor and Diaz both inflicting some excellent punching and leg kicks. McGregor busted Diaz open badly in the fourth round which likely was the deciding factor for the judges on who would edge this encounter.
McGregor earned the judges' call with a majority decision in a modern day classic and most significantly had won a fight against a top level opponent in yet another weight class, this time at Welterweight. 1.65 million people watched him do so.