Mayweather and McGregor: It’s Finally On!

Floyd Mayweather Conor McGregor Betting Odds and Prediction August 26 2017

After months of speculation, the Conor McGregor-Floyd Mayweather megafight is now official. The Irish MMA star will take on the boxing legend on August 26th at the MGM Grand in Las Vegas.

As you can see from our previous news report linked above – sportsbooks have long been taking odds on the event long before yesterday’s official announcement.

Early Betting Action

According to Vegas and offshore sources, almost all the action is going on McGregor, at least so far.

However, there have been a few big bets coming on Mayweather.

Odds Move Since Fight Announced

Since the fight has been officially sanctioned the odds have adjusted quite a bit. Mayweather was a -1200 favorite at some betting sites before the news and McGregor was around a +800 dog. The flurry of bets that have come in on McGregor have made him a much smaller underdog.

As of this writing, Mayweather sits at -550 and McGregor at +375, at

At BetOnline and Sports, you will get a little better price on Conor McGregor at +460. Bovada is the better spot to bet Mayweather, as he’s a -610 to beat McGregor at BetOnline.

Is This Even a Fair Fight?

McGregor is an unbelievable MMA fighter, and he has done some amateur boxing. He also has quite the age advantage on Mayweather. He’s still in his prime at 28 years old, and Floyd is 40 years old.

However, Mayweather is debatably the best boxer of all time. He’s only been knocked down one time in his entire career. He has 49 wins and zero losses, with 26 of those fights decided by a knockout.

McGregor’s doesn’t have much boxing experience. He’s an excellent striker in MMA and can train all he wants, but he’s not a boxer. He’s going to be severely outmatched in this one. Yes, he’s been training. Yes, he’s a physical freak. But, let’s be realistic, McGregor would likely struggle to beat even a journeyman boxer.

I would highly advise against a bet on McGregor. It may be enticing for some based on his MMA career, but this one looks like a sucker bet for the ages. It’s also tough to want to lay -550, but Mayweather may end up being a -1000 after all the betting is done – making the price the now a potential steal and a +EV wager.

Let’s also not forget that McGregor may get disqualified if starts trying to throw some MMA moves into the match. He doesn’t want to lose and is extremely competitive. We don’t know how things will turn out if he gets frustrated by Mayweather.

Floyd hasn’t gone for knockouts in recent fights, but McGregor’s lack of technical prowess and aggressiveness may leave him more open than other fighters. Knockout propositions for Mayweather are worth a look. Under 9.5 and nine rounds are still available at many sportsbooks. I don’t see this one going the scheduled 12 rounds.

Joseph Falchetti

Joseph Falchetti - Editor-in-Chief, Pro Sports Bettor and Casino Expert

Joe is the author of the majority of sports betting pages on SBS and he serves as a gambling consultant to our content team. He's been mentioned on as a gaming analyst, and his articles have been linked by larger publications, such as the New York Times.

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