Net worth: $5,000,000
Mayweather's net worth: $400,000,000
Difference: $395,000,000
Beef: From Floyd's failure to acknowledge Ronda's status/influence/existence to Ronda saying at the ESPYs "I wonder how Floyd feels being beaten by a woman for once," these two have had their moments. It always comes back to the dollars, though. After Mayweather finally dropped the amnesia act and responded to Rousey with more money talk, the UFC Women's Bantamweight Champion took great joy in saying she makes more per second than he does, alluding to her short fights. It was an impressive quote, even if, you know, the math is disputable.