It may or may not be his last fight, but unbeaten welterweight champion Floyd “Money” Mayweather Jr. will undoubtedly be one of the biggest favorites in boxing history when he faces Andre Berto this Saturday at the MGM Grand Garden Arena in Las Vegas.
Mayweather is listed as a giant -3000 favorite (bet $3,000 to win $100) against Berto, who is a massive +1100 underdog (bet $100 to win $1,100) to upset the champ.
“Money” is one victory away from tying legendary heavyweight Rocky Marciano’s perfect record of 49-0, and he has reportedly said he will retire after the Berto fight. However, many believe the opportunity to break Marciano’s mark and reach 50 wins will keep Mayweather active for at least one more bout.
While Mayweather has publicly feuded with undefeated UFC women’s welterweight champion “Rowdy” Ronda Rousey about who is the more dominant fighter, the current betting odds compared to past history suggest he is more dominant.
Rousey is a -1400 favorite against Holly Holm (+750) in her next title fight at UFC 193 on November 15, which ties the largest number in her career. Meanwhile, Mayweather closed as a -2000 favorite against Henry Bruseles (+1400) back in early 2005 before stopping him with an eighth-round TKO.
In his most recent fight against Manny Pacquiao, Mayweather was a -200 favorite, which was the smallest number on him since he battled Oscar De La Hoya as -190 chalk back in 2007.
Rousey was also a -1400 favorite in her latest bout against Bethe Correia at UFC 190 last month, ending that fight in 34 seconds.
In terms of performance though there is no arguing that Rousey has been more dominant throughout her career. Mayweather has stopped 26 of his 48 opponents via knockout (54 percent) while Rousey has finished all 12 of her opponents, including three by TKO/KO and nine by submission, with 11 ending in the first of three scheduled rounds.
But when both of their careers are over, Rousey will not have nearly the same amount of bouts compared to Mayweather, who has been fighting professionally since 1996.
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*Odds as of September 9, 2015