The Nevada State Athletic Commission on Thursday confirmed the UFC 137: Penn vs. Diaz official attendance and gate receipts to MMAWeekly.com
The attendance, as announced at the UFC 137 post-fight press conference, is official at 10,313, of which 2,134 were complimentary tickets given away. There were 409 tickets unsold for the event at the Mandalay Bay Events Center in Las Vegas.
The official gate receipts stand at $3,900,650.
The UFC also held a closed-circuit screening of UFC 137 at Mandalay Bay. The closed-circuit screening drew 523 fans, 200 of which were provided complimentary tickets, for a gate of $26,150. More than 2,000 tickets went unsold for the UFC 137 closed-circuit event.