Most of us know by now that Floyd Mayweather Jr. is the highest-paid athlete in the world and that he will rake in a record purse for his junior middleweight unification showdown with Canelo Alvarez on Saturday night at the MGM Grand in Las Vegas.

The rest of the purses for fighters on the card will be known when the contracts are filed with the Nevada State Athletic Commission later in the week.

But one question I often get from readers is what do the referees and judges make? Well, they are certainly not going to get rich or land in Mayweather's tax bracket.

When the Nevada commission assigns officials to work world title fights, it also sets their pay scale. So when the officials were assigned to the three world title bouts on the Mayweather-Alvarez card, their pay was also set at the public meeting. Because this is a huge card, this is the top-of-the-line pay Nevada officials receive. They would make less for a smaller show.

Kenny Bayless, the referee for the main event, will earn $10,000. Judges Dave Moretti, C.J. Ross and Craig Metcalfe each will make $8,000.

For the co-featured Danny Garcia-Lucas Matthysse junior welterweight title fight, referee Tony Weeks will make $3,150 and judges Robert Hoyle, Glen Trowbridge and Juergen Langos will be paid $2,450 each.

For the Ishe Smith-Carlos Molina junior middleweight title fight, referee Jay Nady will receive $2,000 and judges Adalaide Byrd, Burt Clements and Barry Druxman will earn $1,600 apiece.