Yes. Most major sportsbooks will offer odds on every scheduled fight for every UFC event. Often the main events or main card bouts will have a variety of betting options, while some of the preliminary bouts might have only a few.
You'll see UFC moneyline and totals betting options when you go to the live betting section of an online sportsbook. The lines will frequently shift throughout the fight, and new props will pop up as the bout progresses.
