Beginning with the Reebok contract in 2014, the UFC instituted what it refers to as "fight week incentive pay." That policy bundles together the outfitting policy, promotional duties and the code of conduct for a per-fight bonus in addition to a fighter's purse.
The most common way to bet on MMA odds is to wager on which fighter will win the bout. Oddsmakers use head-to-head moneylines to set these markets, calculating an implied probability for each fighter and then setting a corresponding moneyline for that bet.