In what year did the resort where UFC Fight Night 80 was held open?
UFC Fight Night: Namajunas vs. VanZant UFC Fight Night: Namajunas vs. VanZant (also known as UFC Fight Night 80) was a mixed martial arts event held on December 10, 2015, at The Chelsea at The Cosmopolitan in Las Vegas, Nevada.
UFC 202 UFC 202: Diaz vs. McGregor 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on August 20, 2016, at T-Mobile Arena in Paradise, Nevada, part of the Las Vegas metropolitan area.