UFC 158, headlined by the welterweight title clash between and Nick Diaz , is widely estimated to have generated approximately 950,000 pay-per-view (PPV) buys . Held on March 16, 2013, at the Bell Centre in Montreal, Canada, the event was a massive commercial success, marking one of the highest buyrates in St-Pierre's storied career. PPV Performance and Revenue
The event drew an attendance of 20,145 , generating a live gate revenue of approximately $3.71 million .
While the UFC does not officially release PPV figures, multiple reputable industry sources provided consistent estimates following the event: