Floyd Joy Mayweather Jr. (né Sinclair; born February 24, 1977) is an American professional boxing promoter and professional boxer. He competed from 1996 to 2007 and 2009 to 2015, and made two one-fight comebacks in 2017 and 2018. During his career, he held multiple world titles in five weight classes and the lineal championship in four weight classes (twice at welterweight), and retired with an undefeated record. As an amateur, Mayweather won a bronze medal in the featherweight division at the 1996 Olympics, three U.S. Golden Gloves championships (at light flyweight, flyweight, and featherweight), and the U.S. national championship at featherweight.

Mayweather is one of the most lucrative pay-per-view attractions of all time, in any sport. He topped the Forbes and Sports Illustrated lists of the 50 highest-paid athletes of 2012 and 2013, and the Forbes list again in both 2014 and 2015 listing him as the highest paid athlete in the world. In 2007, he founded his own boxing promotional firm, Mayweather Promotions, after leaving Bob Arum's Top Rank. Mayweather has generated approximately 23.8 million PPV buys and $1.67 billion in revenue throughout his career, surpassing the likes of former top PPV attractions including Mike Tyson, Evander Holyfield, Lennox Lewis, Oscar De La Hoya and Manny Pacquiao.

Floyd Joy Mayweather Jr. was born Floyd Joy Sinclair on February 24, 1977, in Grand Rapids, Michigan, into a family of boxers. His father, Floyd Mayweather Sr., was a former welterweight contender who fought Hall of Famer Sugar Ray Leonard. His uncles Jeff and Roger Mayweather were professional boxers, with the latter—Floyd's former trainer—winning two world championships, as well as fighting Hall of Famers Julio César Chávez, Pernell Whitaker, and Kostya Tszyu. Mayweather was born with his mother's last name,[21] but his last name would change to Mayweather shortly thereafter. He attended Ottawa Hills High School before dropping out.

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