Critics argue the big boxing matches have become nothing but glitzy show events drowned in money. The latest fight of Floyd Mayweather against Conor McGregor stands to be the most lucrative fight as of yet, grossing at an half a billion dollars in total revenue, which probably is a conservative estimate for this bout. Though the actual prize money the boxers take home is lower, the below chart indicates that Mayweather won't have to worry about his pension. The 40-year-old claims the fight on Saturday night in Las Vegas was his last one.