UFC Fight Night 83: Cowboy vs. Cowboy was a mixed martial arts event held on February 21, 2016, at the Consol Energy Center in Pittsburgh, Pennsylvania. The event was headlined by a welterweight bout between former UFC Lightweight Championship challenger Donald Cerrone and Alex Oliveira.

UFC Fight Night 83: Cowboy vs. Cowboy

UFC on Fox 24: Johnson vs. Reis was a mixed martial arts event produced by the Ultimate Fighting Championship held on April 15, 2017, at the Sprint Center in Kansas City, Missouri. A UFC Flyweight Championship match between current champion Demetrious Johnson and Wilson Reis headlined this event.