Bryan Altman, CBS Local Sports

The only thing that stands between Floyd Mayweather and Rocky Marciano’s record of 49-0 is Miami, Florida’s Andre Berto, who will do his best to be the first to put a blemish on Mayweather’s impeccable boxing record when the two square off on Sept. 12 at MGM Grand Resort & Casino in Las Vegas, Nevada. But if the early odds are any indication, most boxing analysts think Berto, who has a lifetime record of 30-3, doesn’t stand much of a chance against against the current undefeated champion.

According to Las Vegas based Bovada Sportsbook, Mayweather is currently a 100/1 favorite to beat Berto and reach the coveted 49-0 mark. That means if you’re hoping to win a quick $100 bucks betting on Mayweather, you’ll have to risk $10,000 just to do so. Or you can bet $100 to win $1. Not a great return on investment. 

On the other side of the ring, Berto’s odds are 16/1, which makes him one of the biggest underdogs in the history of boxing.

Business Insider put together a list of some of the biggest underdogs that actually managed to spring the upset and win their fight to see how Berto stacks up.

From Business Insider:  

  • 1934: Max Schmeling (10:1 underdog) defeats Joe Louis
  • 1935: Jim Braddock (10:1 underdog) defeats Max Baer
  • 1951: Randy Turpin (5:1 underdog) defeats Sugar Ray Robinson
  • 1964: Muhammad Ali, then Cassius Clay, (7:1 underdog) defeats Sonny Liston
  • 1971: Muhammad Ali (7:1 underdog) defeats George Foreman
  • 1985: Michael Spinks (6:1 underdog) defeats Larry Holmes
  • 1990: Buster Douglas (42:1 underdog) defeats Mike Tyson
  • 1994: Frankie Randall (15:1 underdog) defeats Julio Cesar Chavez
  • 2008: Carlos Quintana (8:1 underdog) defeats Paul Williams

 

Based on the above upsets, Berto’s defeat of Mayweather would be the second biggest in boxing history only behind Douglas and Tyson. For his part, Berto seems to be embracing the underdog role. Berto spoke with BoxingScene.com and told them the following:

“I’m coming to kick Floyd’s a** on September 12. Best believe that I plan to bring it to Floyd and I’m not concerned about what 48 other fighters have been unable to do. Somebody is getting knocked out and it won’t be me. You don’t want to miss this.”

With Berto’s bravado, the longshot odds, and a chance for Mayweather to make boxing history, there will be plenty of juicy storylines leading up to the fight on Sept 12. 

Bryan Altman is, for some reason, an unabashed fan of the Rangers, Jets and Mets. If he absolutely had to pick a basketball team it would be the Knicks, but he’d gladly trade them for just one championship for either of his other three teams.

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