Jim Lampley: $20 Million
Jim Lampley has been the voice of boxing since 1988, becoming a legendary HBO sportscaster. He has provided commentary for numerous classic fights, including Buster Douglas's knockout of Mike Tyson, Floyd Mayweather Jr.'s 12-round decision over Manny Pacquiao, and Mayweather Jr.'s title-winning effort against Oscar De La Hoya. Lampley's ability to gauge when to speak and when to remain silent has contributed to his success. He has also increased his net worth by commenting on 14 Olympic broadcasts for NBC and ABC.