Finding the Favorite and Underdog

When online sportsbooks post upcoming MMA fights, they will list each fighter with a three-digit number next to their name, such as “Georges St-Pierre -160” and “Conor McGregor +130.” A negative number indicates the favorite. A positive number indicates the underdog. The larger the number, the bigger the favorite/underdog. So a +130 underdog is perceived to have a better chance of pulling an upset than a +250 underdog.