Internationally known retired professional boxer Roger Mayweather has an estimated net worth of $10 million. Nicknamed Black Mamba, he was born on April 24, 1961 in Grand Rapids, Michigan. He won two major world titles in two different weight divisions throughout his career. He fought against many other boxing champions of the 1980s and 1990s. He is a part of the Mayweather boxing family. His brothers are former welterweight contender Floyd Mayweather Sr. and former IBO super featherweight champion Jeff Mayweather. His nephew is the five-division world champion Floyd Mayweather Jr. to whom he eventually became the full time trainer after turning pro in 1996. Such move became profitable to both parties. However, he was replaced by Mayweather Sr. after he was released from prison. He then again became the coach when Mayweather fired his father after he defeated Gregorio Vargas on March 18, 2000.

The Black Mamba began his career with a great record of 64-4. He went pro on July 29, 1981, and won against Andrew Ruiz by TKO. This was the start of a successful boxing career. He won the super featherweight championship against Samuel Serrano with a final record of 15-0. He gained some weight and moved up to the super lightweight division where he continued to succeed. He finally ended his career in the welterweight division. He has received international notoriety and the matching paychecks.