Floyd Mayweather Jr. vs. Manny Pacquiao, billed as the Fight of the Century or the Battle for Greatness, was a professional boxing match between undefeated five-division world champion Floyd Mayweather Jr. and eight-division world champion Manny Pacquiao. It took place on May 2, 2015, at the MGM Grand Garden Arena in Paradise, Nevada. Mayweather Jr. won the contest by unanimous decision, with two judges scoring it 116–112 and the other 118–110.

Floyd Joy Mayweather Jr. is an American boxing promoter and former professional boxer who competed between 1996 and 2017. He retired with an undefeated record and won 15 major world championships from super featherweight to light middleweight. This includes the Ring magazine title in three weight classes and the lineal championship in four weight classes. As an amateur, he won a bronze medal in the featherweight division at the 1996 Olympics, three U.S. Golden Gloves championships, and the U.S. national championship at featherweight.