Floyd Joy Mayweather, Jr. is an American professional boxer. Floyd Mayweather (birth-name: Floyd Sinclair) was born on 24 February 1977 in Grand Rapids, Michigan, US. Floyd Mayweather is undefeated with 40 wins including 25 by knockout. Floyd Mayweather has won six world boxing championships in five different weight classes. Floyd Mayweather was rated by The Ring magazine as the number-one pound for pound boxer in the world, from 18 July 2005 through 2 June 2 2008, and is currently ranked number 2 pound for pound fighter. Floyd Mayweather has won six world boxing championships in five different weight classes. Manny Pacquiao, is the WBO World welterweight champion, IBO and Ring Magazine light welterweight champion, and is rated by Ring Magazine as the #1 pound-for-pound boxer in the... (read more)