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Floyd Mayweather and Conor McGregor separated by Dana White at a press conference
Floyd Mayweather (L), UFC President Dana White (C), Conor McGregor (R): the three biggest names in combat sports? Photo by Chris Farina (Zuma Press/Icon Sportswire).

Floyd Mayweather versus Conor McGregor kicked off a new fad in the world of combat sports: outlandish propositions that could actually become reality.

Sportsbooks have gotten in on the trend, often posting wagers on whether certain mega-fights will come to fruition, or whether certain fighters will cross over into new sports. But there’s a massive world of potential fights and outcomes out there, and they can’t cover them all. We fill in the gaps with our unique, in-house odds on trending MMA, boxing, and general combat sports topics.

Date: March 20, 2018

Odds Floyd Mayweather faces Conor McGregor in an MMA fight in 2018: 9/1
The rumors are out there, and so is the money, but it’s still a huge longshot.

O/U rounds of a Mayweather vs McGregor MMA fight: 0.5
If it does happen, it won’t last nearly as long as their boxing match, which went into the tenth round.

Location of a Mayweather vs McGregor MMA fight

Las Vegas, Nevada 1/8
Dublin, Ireland  24/1
FIELD 13/1

Odds to win a Mayweather vs McGregor MMA fight

Conor McGregor 1/23
Floyd Mayweather 24/1

Outcome of a Mayweather vs McGregor MMA fight
*Outcomes exclude disqualification.

McGregor wins by knockout (or stoppage/tap due to strikes) 2/3
McGregor wins by submission  11/5
McGregor wins by decision  19/1
Mayweather wins by knockout/stoppage due to strikes  40/1
Mayweather wins by decision 75/1
Mayweather wins by submission  499/1
Draw 199/1

Most likely McGregor submissions vs Mayweather

Rear-naked choke 1/5
Armbar  15/1
Triangle choke 19/1
FIELD 17/1


O/U career MMA fights for Floyd Mayweather: 0.5
At 41 years old, “Money” isn’t embarking on a lengthy career in any sport, let alone one of the most gruelling on the planet.

Odds Mayweather faces someone other than McGregor in his first televised MMA fight: 3/2
If he’s smart, he’ll work his way up to the erstwhile UFC champ. If he’s greedy, which we know that he is, he’ll jump right in the deep end for the big-money fight with Notorious.