The UFC odds referenced above are listed in American format. The favorite is identified by the minus sign (-) and the underdog is identified by the plus sign (+). When betting a favorite, you need to wager the amount of the odds to win $100, so if the odds are -150 it will take a $150 bet to win $100. When betting an underdog, you can win the amount of the odds based on a $100 wager, so if the odds are +200 you can win $200 with a $100 wager.