Floyd Mayweather, Jr.
In May 2007, the super-welterweight boxing match between Oscar De La Hoya vs. Floyd Mayweather Jr. on HBO PPV became the biggest-selling non-heavyweight title fight, with a little more than 2.5 million buyers. The fight itself generated roughly in domestic PPV revenue, making it the most lucrative prizefight of that era. The record stood until 2015 before it was broken by Floyd Mayweather, Jr. vs. Manny Pacquiao in a fight dubbed as the "Fight of the Century" on May 2, 2015 which generated 4.6 million ppv buys and a revenue of over $400 million.