A prop bet or proposition bet is a wager on an individual player or specific event in a game/match that is not directly connected to the outcome of a game.

UFC Odds Explained: How to Bet on UFC Fights\n\n The odds are always accompanied by a plus sign and a minus sign. These two determine whether you need to bet more or less than $100 to win $100 more. The favorite is represented with a minus sign, which means you need to stake more than $100 to win that much.